cx28331 Mindspeed Technologies, cx28331 Datasheet

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cx28331

Manufacturer Part Number
cx28331
Description
Single/dual/triple E3/ds3/sts-1line Interface Unit
Manufacturer
Mindspeed Technologies
Datasheet

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Single/Dual/Triple E3/DS3/STS-1
Line Interface Unit
Data Sheet
CX28331/CX28332/CX28333 (–1x)
28333-DSH-001-A
Feb 2003

Related parts for cx28331

cx28331 Summary of contents

Page 1

... Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Data Sheet CX28331/CX28332/CX28333 (–1x) 28333-DSH-001-A Feb 2003 ...

Page 2

... Mindspeed Technologies™, a Conexant business All Rights Reserved. Information in this document is provided in connection with Mindspeed Technologies (“Mindspeed”) products. These materials are provided by Mindspeed as a service to its customers and may be used for informational purposes only. Mindspeed assumes no responsibility for errors or omissions in these materials. Mindspeed may make changes to specifications and product descriptions at any time, without notice. Mindspeed makes no commitment to update the information and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to its specifications and product descriptions ...

Page 3

... Additionally, each channel has a programmable transmit pulse shaper that can be set to ensure that the transmit pulse meets the pulse mask requirement for the digital cross-connect. The CX28332 is a dual-channel, and the CX28331 is a single-channel LIU with performance identical to the CX28333. ...

Page 4

... NRZTX DATA and CLK in I CH3 D E NRZRX DATA and CLK out Loss of Signal Code Violation Ordering Information Model Number Package CX28331-1x 80-Pin ETQFP CX28332-1x 80-Pin ETQFP CX28333-1x 80-Pin ETQFP iv TX B3ZS/HDB3 analog out RX B3ZS/HDB3 analog in TX B3ZS/HDB3 analog out CX28333 ...

Page 5

... The PLL Clock Recovery Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 2.3.4 Loss Of Signal (LOS) Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 2.3.5 B3ZS/HDB3 Decoder With Bipolar Violation Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10 2.3.6 Data Squelching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11 2.3.7 Jitter Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11 2.4 Jitter Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 2.4.1 2.5 Additional CX2833i Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14 2.5.1 Bias Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14 2.5.2 Power-On Reset (POR 2-14 Loopback Multiplexers (MUXes 2-14 2.5.3 2.6 Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 28333-DSH-001-A Mindspeed Proprietary and Confidential ™ Mindspeed Technologies v ...

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... Appendix C: Power Sequencing vi Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A B C-1 ™ ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit List of Figures Figure 1-1. CX28331-1x Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Figure 1-2. CX28332-1x Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Figure 1-3. CX28333-1x Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Figure 2-1 ...

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... List of Figures viii Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit ™ Mindspeed Technologies 28333-DSH-001-A ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit List of Tables Table 1-1. CX2833i-1x Pin Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Table 2-1. DS3 Transmit Template Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Table 2-2. STS-1 Transmit Template Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 Table 2-3 ...

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... List of Tables x Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit ™ Mindspeed Technologies 28333-DSH-001-A ...

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... NOTE: 28333-DSH-001-A Mindspeed Proprietary and Confidential 1 (CX28331-1x), 1-2 (CX28332-1x), and for the CX2833i-1x pin descriptions. All digital inputs and outputs contain 75 k pull-down resistors. When power is disconnected from the device, TLINE pins are low impedance to ground if driven by more than one forward-bias diode voltage (0 ...

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... Pin Description 1.1 Pin Assignments Figure 1-1. CX28331-1x Pin Diagram VSS VDD 4 VDD VSS 8 TVSS 9 TLINEP 10 TLINEN 11 TVDD 12 RVDD 13 RLINEP 14 RLINEN 15 RVSS 16 VSS VDD 20 1-2 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit CX28331-1x ™ Mindspeed Technologies ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Figure 1-2. CX28332-1x Pin Diagram TVSS1 1 TLINE1P 2 TLINE1N 3 TVDD1 4 RVDD1 5 RLINE1P 6 RLINE1N 7 RVSS1 8 VSS VDD 12 VDD VSS 16 TVSS2 17 TLINE2P 18 TLINE2N 19 TVDD2 20 28333-DSH-001-A Mindspeed Proprietary and Confidential CX28332-1x ™ Mindspeed Technologies 1.0 Pin Description 1 ...

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... RLINE1N 7 RVSS1 8 TVSS2 9 TLINE2P 10 TLINE2N 11 TVDD2 12 RVDD2 13 RLINE2P 14 RLINE2N 15 RVSS2 16 TVSS3 17 TLINE3P 18 TLINE3N 19 TVDD3 20 1-4 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit CX28333-1x ™ Mindspeed Technologies 60 DVDDC 59 ENDECDIS 58 PD2 57 RLOOP2 56 LLOOP2 55 RNEG2/RLCV2 54 RPOS2/RNRZ2 53 RCLK2 52 RLOS2 51 TAIS2 50 TCLK2 49 TPOS2/TNRZ2 TNEG2/NC2 ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Table 1-1. CX2833i-1x Pin Definitions ( Pin # CX28331-1x CX28332-1x CX28333-1x 14 — — — — — — — — — — 22 — — — — — — — — — ...

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... Pin Description 1.1 Pin Assignments Table 1-1. CX2833i-1x Pin Definitions ( Pin # CX28331-1x CX28332-1x CX28333-1x 54 — — — — — — — — — — 33 — — — — — — — — — — ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Table 1-1. CX2833i-1x Pin Definitions ( Pin # CX28331-1x CX28332-1x CX28333-1x 50 — — — — — — — — — — — — — — — — — ...

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... Pin Description 1.1 Pin Assignments Table 1-1. CX2833i-1x Pin Definitions ( Pin # CX28331-1x CX28332-1x CX28333- — — — — — — — — — — — — — — — — — — ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Table 1-1. CX2833i-1x Pin Definitions ( Pin # CX28331-1x CX28332-1x CX28333-1x 46 — — — — — — — — — — — — — — — — — — ...

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... Pin Description 1.1 Pin Assignments Table 1-1. CX2833i-1x Pin Definitions ( Pin # CX28331-1x CX28332-1x CX28333- 20, 21 12, 13 — 17 — 58 — — — — — — — — — — — — ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Table 1-1. CX2833i-1x Pin Definitions ( Pin # CX28331-1x CX28332-1x CX28333- 18, 10, 11, 14, 42 19, 22, 23, 15, 42, 25, 26, 27, 44–58 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 42, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 74, 75, 76 NOTE(S): (1) This pin should be connected to 3 all-3.3 V design. ...

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... Pin Description 1.1 Pin Assignments 1-12 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit ™ Mindspeed Technologies 28333-DSH-001-A ...

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... The receiver side takes in the attenuated and distorted analog receive signal and equalizes, slices, and resynchronizes the signal before decoding it to the NRZ output or sending out a non-decoded dual rail. CX28331 and CX28332 are single- and dual-E3/DS3/STS-1 LIUs, respectively. In all respects, their performance and features are identical to the CX28333. ...

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... Figure 2-1. Typical Application Of Single CX2833i Channel 0–450 ft COAX TX (type 734/728) 0–450 ft COAX RX (type 734/728) 2-2 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Figure 2-1. illustrates a typical application using the CX2833i in a 0–450 ft COAX DSX (type 734/728) 0–450 ft COAX DSX (type 734/728) ™ ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit 2.2 Transmitter This section describes the detailed operation of the various blocks in the CX2833i transmitter. 2.2.1 AMI B3ZS/HDB3 Encoder The ENDECDIS and E3MODE pins configure the encoder mode. When ENDECDIS = 0, the encoder is receiving non-encoded Nonreturn to Zero (NRZ) data on the TNRZ (TPOS) pin alone, and the NC (no connect) (TNEG) pin is ignored ...

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... Pulse/Power Template for E3 0–450 ft COAX RX (type 734/728) 2-4 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit differential load. Driver gain accounts for the 6 dB illustrates the Pulse/Power template measurement points for the Pulse/Power Template for DS3/STS-1 0–450 ft COAX DSX (type 734/728) 0– ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit 2.2.3.1 Transmit Pulse The Transmit Pulse Mask characteristics of the CX2833i device are designed so Mask Templates that the transmitted output meets the Pulse Shape mask specified in ITU-T Recommendation G.703. Figure 2-4. Transmit Pulse Mask for DS3 Rates 1.2 1 0.8 0.6 0.4 0.2 0 -0.2 NOTE(S): An Isolated Pulse is a pulse preceded by at least two zeros and followed by one or more zeros ...

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... T –0.68 –0.68 T 0.26 0.26 T 1.4 –0.85 T –0.36 –0.36 T 0.36 0.36 T 1.4 NOTE(S): ( (System Clock Frequency) 2-6 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Transmit Pulse Mask for STS-1 Rates Normalized Symbol Time (1) Normalized Amplitude Equation Upper Curve 0.03 0. sin [( / 2)( 0.34)]} –2.4(T – 0.26) 0.1 + 0.61 e Lower Curve – ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Figure 2-6. Transmit Pulse Mask for E3 Rate 0.2 0.1 0.1 0.2 Volts 1.0 0.5 0.1 0.1 0.2 28333-DSH-001-A Mindspeed Proprietary and Confidential 17 ns 14.55 ns 8.65 ns 12.1 ns 24.5 ns 29.1 ns Time ™ Mindspeed Technologies 2.0 Functional Description 2.2 Transmitter 500118a_1 2-7 ...

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... E3 rate—ETSI TBR24, ITU-T G.823 • DS3 rate—Bellcore GR499, AT&T Accunet TR54014, ITU-T G.824 • STS-1 rate—Bellcore GR253 2-8 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Figure 2-7. (Section ™ Mindspeed Technologies illustrates the AIS signal. ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit 2.3 Receiver This section describes the detailed operation of the various blocks in the CX2833i receiver. 2.3.1 Receive Sensitivity The receiver recovers data from the coaxial cable that is attenuated due to the frequency-dependent characteristics of the cable. In addition, the receiver compensates for the flat loss (across all frequencies) in the various electrical components and the variation in transmitted signal power ...

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... Excessive zeros (HDB3 (B3ZS). These violations are • Bipolar violation (i.e for HDB3 • Coding violation (HDB3 (B3ZS) with an even number of 2-10 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Min Action (mV) — ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit The even/odd counter (used to count the number of Bs between Vs) will count a bipolar violation coding violation or a valid 0 substitution resets the counter. When ENDECDIS = 1, the decoder is disabled, and the retimed slicer outputs are sent out over RPOS (RNRZ) and RNEG (RLCV) pins. These outputs are then decoded by the Framer or other downstream device ...

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... Figure 2-8. Minimum Jitter Tolerance Requirement T3 [GR-499 (1995)] 10 Category [GR-499 (1995)] Category I E3 [GR.823 (1993)] 1 2-12 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Receiver Jitter Tolerance 1.5 2.3K 22.3K 100 Hz 1 kHz 10 kHz Jitter Frequency (Hz) ™ Mindspeed Technologies CX28333 Jitter Tolerance ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit 2.4.1 Jitter Transfer The receiver must meet certain jitter transfer specifications between the input and output jitter as a function of frequency. These specifications are only intended to be met with the use of a jitter attenuator. Because the CX2833i does not contain a jitter attenuator, one will have to be supplied externally ...

Page 36

... Pin 78 [80-pin package], Pin 97 [100-pin package]). Valid operation frequencies are DS3 (44.768 MHz ppm), E3 (34.368 MHz refer to the CX28331/2/3 Evaluation Module User Guide for crystal oscillator specifications and vendor listings. A POR circuit is provided in the CX2833i device to initialize all resettable digital logic and analog control lines ...

Page 37

... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit In local loopback, set by asserting pin LLOOP, the transmit data loops back immediately from the encoder output to the decoder input in place of the received data. Additionally, this data is sent out the TLINEP and TLINEM/N pins. Figures NOTE: Figure 2-10 ...

Page 38

... E3MODE PDB TPOS TNEG Encoder TCLK TAIS RLOOP DATA MUX LLOOP RPOS RNEG RCLK RLOS DECODER 2-16 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit PDATA/ NDATA Pulse LINE Shaper DRIVER TCLK P PDATA Receiver Clock/ N NDATA Data Recovery DATCLK ALOS ...

Page 39

... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit 2.6 Mechanical Specifications Figure 2-12. CX2833i-1x Mechanical Drawing (80-Pin)—Dimensions Pin # Ref. Mark TOP DETAIL B 28333-DSH-001-A Mindspeed Proprietary and Confidential Dim. A See DETAIL ...

Page 40

... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2-18 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Symbol Parameter Power Supply Voltage Voltage on Any Signal Pin ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit 2.7.2 ESD Ratings Testing Method—The devices were subjected to ESD events at the rated voltage with both positive and negative polarities relative to each other pin or supply domain on the device. The given pin was then curve-traced to detect leaky or shorted ESD diodes ...

Page 42

... The digital outputs of CX2833i are also TTL 5 V compliant when VGG = 5V. However, these outputs do not drive nor do they accept 5 V external pull-ups. 3. Measured while transmitting and receiving all-1s pattern. 2-20 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Conditions Min 2.0 – ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit 2.9 AC Characteristics Table 2-8. AC Characteristics (Logic Timing) Tosym, Tisym RCLK and TCLK Clock Duty Cycle Todelay Tisetup Tihold NOTE(S): 1. The description applies to the DS3, E3, and STS-1 clock rates and other parameters such as pulse width, set-up time, hold time, and duty cycle. ...

Page 44

... Functional Description 2.9 AC Characteristics Figure 2-13. Timing Diagram DATA OUTPUTS RCLK RPOS/RNRZ, RNEG/RLCV DATA INPUTS TCLK TPOS/TNRZ, TNEG, TAIS, 2-22 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Todelay Tisetup Don't Valid Data Care ™ Mindspeed Technologies Tosym Towidth Tisym Tiwidth Tihold ...

Page 45

... Applications The CX28331/CX28332/CX28333 can be used in a variety of applications. Figure 3-1 CX28333. The data and clock are extracted and passed on to the framer chip for further data manipulation and user interface important to employ high-frequency design techniques for the printed board layout. 3.1 PCB Design Considerations for the CX2833i The CX28333 device is a mixed signal triple-port LIU device operating at frequencies ...

Page 46

... Tx and 3 Rx channels recommended that a 220 µF tantalum capacitor be used where the power enters the board. 3.1.5 IBIS Models IBIS (Input/Output Buffer Interface Specification) models for the CX28331/CX28332/CX28333-1x are available from Mindspeed’s web site (www.mindspeed.com). 3-2 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit ™ ...

Page 47

... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit 3.1.6 Recommended Vendors Product: Transformers America Pulse Address: Corporate Office 12220 World Trade Drive San Diego, CA 92128 Telo: 858-674-8100 Fax: 858-674-8262 Northern Asia Pulse 3F-4, No. 81, Sec. 1 Hsin Tai Wu Road Hsi-Chih Tapei Hsien, Taiwan R.O.C. Telo: 886-2-26980228 ...

Page 48

... MODE TPOS TNEG TCLK Framer RPOS RNEG RCLK MODE MODE Mode/Status Pins NOTE(S): 1. All transformers are part number T3001 from Pulse Technology. See Recommended Vendors, 3-4 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit 9 31.6 1:1 TLINEP TX TLINEN 9 31.6 Channel 1 9 37.4 RLINEP 0.01µF ...

Page 49

... Systems: Common Generic Criteria” Hierarchical Digital Interfaces” Within Digital Networks Which are Based on the 2,048 kbps Hierarchy” Equipment Operating at the Primary Rate and Above” Unstructured and Structured Lease Lines; Attachment Requirements for Terminal Equipment Interface” ™ Mindspeed Technologies A-1 ...

Page 50

... Appendix A: Applicable Standards A-2 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit ™ Mindspeed Technologies 28333-DSH-001-A ...

Page 51

... Mindspeed ETQFPs. 28333-DSH-001-A Mindspeed Proprietary and Confidential B Mindspeed recommends that the exposed paddle on the CX2833i-1x be soldered to the ground side of the PCB for reasons described below. Do not route PCB traces or vias under the exposed paddle area of the CX2833i-1x device. ™ Mindspeed Technologies B-1 ...

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... PCB. package components. Figure B-1. Schematic Representation of the Package Components Lead Frame B-2 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Figure B-1 illustrates the schematic of the Mold Compound Lead Frame ™ ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit B.2 Package Thermal Characterization B.2.1 Heat Removal Path The internal heat removal path is designed to transfer heat from the top surface of the die to the die pad and then directly to the Printed Circuit Board (PCB) through a center solder pad. The PCB must have features designed to remove heat from the package efficiently ...

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... N represents the total number of thermal vias to be placed evenly across the entire PCB center pad. In the case of the 48-lead ETQFP, all thermal vias are located within the exposed region of the center pad. B-4 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Table B-1 lists the dimensions for the entire ETQFP package ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit B.2.3 PCB Design Thermal vias are the primary method of heat transfer from the PCB thermal land to the internal copper planes or to other heat removal sinks. The number, size, and construction of the vias is important in obtaining the best package thermal performance and package/PCB assembly ...

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... Table B-3. Specification for a Four-Layer Test Board Substrate Material Thickness Stackup (signal layers, Cu planes) Cu Coverage (signal layer—top/bottom) Cu Coverage (power/ground layer) Inner Cu Thickness (spec) B-6 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit = 1.40 mm Air Flow Drawing Number TR03-T1 FR-4 1 ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit B.2.5 Package Thermal Performance B.2.5.1 Calculation Maximum junction temperature can be calculated as: Guidelines T j Where B.2.5.2 Package Delco thermal test chips are used to estimate package thermal performance. Thermal Resistance Table B-4 Table B-4. Specification for Delco Thermal Test Chips Dimensions 3 ...

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... Figure B-8. Package Thermal Resistance as a Function of Airflow Velocity for an 80 ETQFP 100 B-8 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit lists the test conditions for Figures B-6 64 ETQFP 6. 6. 7.50 mm Two Layer PCB Four Layer PCB Six Layer PCB 150 200 ...

Page 59

... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit B.3 Solder Stencil Determination Use the thickest possible solder mask, consistent with the components being assembled to the PWB surface mount process. A standoff height of 2.0–4.2 mils provides good solder joints for both the leads and the center pad. This is achieved using a stencil thickness mils ...

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... Max Slope: –3.2 Belt Speed = 38.00 inches/minute 1 160 9 265 NOTE(S): Peak temperature should be approximately 220 °C, and the exposure time should normally be less than 1.0 minutes at temperature above 183 °C. B-10 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit 1.2 1.9 2.5 Seconds Over 183: 48 ...

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... CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit Figure B-10. Typical Forced Convection Reflow Profile for Eutectic Sn63:Pb37 File = SMOLE42 TWO2 - D675-001 2470 MAXIMA X Deg. 1= 221 236 225 236 227 232.3 1700 4 = 226 233.3 MAX SLOPES X Deg./Point 1= 27 4.4 920 0.0 150 +X-----> ...

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... Appendix B: Exposed Thin Quad Flat (ETQFP) Pack B.4 Solder Reflow Profile B-12 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit ™ Mindspeed Technologies 28333-DSH-001-A ...

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... VGG can exceed VDD (±10%) for short durations of less than 10 ms. VGG must never be less than VDD by more than 0.5V. 3.6V Max. 3.6V Max. 0.5V Max. 3.6V Max. 0.5V Max. 3.6V Max. Time VGGmax 3.6V Max. VDD VGGmin 0.5V Max. 0.5V Max. 3.6V Max. 5.5V Max. VSS Time ™ Mindspeed Technologies VGGmax VDD VGGmin 5.5V Max. VSS 3.6V Max. 3.6V Max. C-1 ...

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... Appendix C: Power Sequencing C-2 Mindspeed Proprietary and Confidential CX28331/CX28332/CX28333 (-1x) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit ™ Mindspeed Technologies 28333-DSH-001-A ...

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General Information: U.S. and Canada: (800) 854-8099 International: (949) 483-6996 Headquarters - Newport Beach 4311 Jamboree Rd. P.O. Box C Newport Beach, CA. 92658-8902 ...

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