HDMP-2634 Avago Technologies US Inc., HDMP-2634 Datasheet

HDMP-2634

Manufacturer Part Number
HDMP-2634
Description
Manufacturer
Avago Technologies US Inc.
Datasheet

Specifications of HDMP-2634

Operating Supply Voltage (typ)
3.3V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Not Compliant

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Part Number
Manufacturer
Quantity
Price
Part Number:
HDMP-2634
Manufacturer:
AGULENT
Quantity:
25
Description
This data sheet describes the
HDMP-2634 Serdes device for
2.5 GBd serial data rates.
The HDMP-2634 Serdes is a silicon
bipolar integrated circuit in a metal-
lized QFP package. It provides a
low-cost physical layer solution for
2.5 GBd serial link interfaces includ-
ing a complete Serialize/Deserialize
(Serdes) function with transmit and
receive sections in a single device.
The HDMP-2634 is also capable of
operating on 1.25 GBd serial links.
Input pins TX_RATE and RX_RATE
select the data rates on the transmit
and receive sides, respectively.
As shown in Figure 1, the transmit-
ter section accepts 10-bit wide par-
allel SSTL_2 data (TX[0:9]) and a
125 MHz SSTL_2 byte clock (TBC)
and serializes them into a high-
speed serial stream. The parallel
data is expected to be “8B/10B”
encoded data or equivalent. At the
source, TX[0:9] and TBC switch
synchronously with respect to a 125
MHz clock internal to the sender.
New data are emitted on both edges
of TBC; this is called Double Data
Rate (DDR). The HDMP-2634 finds
Agilent HDMP-2634
2.5/1.25 GBd Serdes Circuit
Data Sheet
a sampling window between the
two edges of TBC to latch TX[0:9]
data into the input register of the
transmitter section when
TX_RATE=1. If TX_RATE=0, the
user must ensure no data transi-
tions on the falling edge of TBC
and this edge is used to latch in
parallel data resulting in a 1.25
GBd serial stream.
The transmitter section’s PLL
locks to the 125 MHz TBC. This
clock is then multiplied by 20 to
generate the 2500 MHz serial
clock for the high-speed serial
outputs. The high-speed outputs
are capable of interfacing directly
to copper cables or PCB traces
for electrical transmission or to
a separate fiber optic module
for optical transmission. The
high-speed outputs include user-
controllable skin-loss equalization
to improve performance when
driving copper lines.
The receiver section accepts a
serial electrical data stream at
1.25 or 2.5 GBd and recovers
10-bit wide parallel data. The
receiver PLL locks onto the incom-
ing serial signal and recovers the
Features
• 10-bit wide parallel Tx, Rx busses
• 125 MHz TBC and RBC[0:1]
• Option to set Tx and Rx serial
• Parallel data I/O, clocks and
• Differential PECL or LVTTL REFCLK
• Double data rate transfers
• Source synchronous clocking of
• Source centered or source
• Dual or single receive byte
• Parallel loopback mode
• Differential BLL serial I/O with
• 14 mm, 64-pin MQFP package
• Single +3.3 V power supply
Applications
• Gigabit ethernet channel
• Fast serial backplanes
• Clusters
Ordering Information
Part Number
HDMP-2634
data rates separately
control compatible with SSTL_2
at 125 MHz
transmit data
synchronous clocking of
receive data
clocks
on-chip source termination
aggregation trunks
Parallel I/O
SSTL_2

Related parts for HDMP-2634

HDMP-2634 Summary of contents

Page 1

... Description This data sheet describes the HDMP-2634 Serdes device for 2.5 GBd serial data rates. The HDMP-2634 Serdes is a silicon bipolar integrated circuit in a metal- lized QFP package. It provides a low-cost physical layer solution for 2.5 GBd serial link interfaces includ- ing a complete Serialize/Deserialize (Serdes) function with transmit and receive sections in a single device ...

Page 2

... The HDMP-2634 accepts either a differential PECL or a LVTTL reference clock input at 125 MHz. HDMP-2634 Block Diagram The HDMP-2634 (Figure 2) is designed to transmit and receive 10-bit wide parallel data over high-speed serial communication lines. The parallel data applied to ...

Page 3

... ASIC REFCLK[0:1] Figure 1. Typical application using HDMP-2634. TX[0:9] TBC TX PLL TXCAP0 CLOCK TXCAP1 GENERATOR RXCAP0 RXCAP1 REFCLK[0:1] TX_RATE RX_RATE RBC[0:1] RX[0:9] BYTE SYNC COM_DET Figure 2. Block diagram of HDMP-2634. 3 HDMP-2634 TRANSMITTER SECTION TX_RATE TBC TX[0:9] PLL RBC[0:1] PLL RX[0:9] COM_DET RX_RATE REF_RATE ...

Page 4

FRAME MUX The FRAME MUX accepts 10-bit wide parallel data from the INPUT LATCH. Using internally generated high-speed clocks, this parallel data is multiplexed into a 2.5 GBd serial data stream. The data bits are transmitted sequen- tially from TX[0] ...

Page 5

... SSTL_2 compatible signals at the TX[0:9] and TBC pins. These pins are unterminated per section 4.1 of the SSTL_2 standard (Figure 11). The VREFT input pin is used by the HDMP-2634 to differentially detect a high or low on TBC and TX[0:9]. VREFT may be generated by the protocol device or on the PCB using a ...

Page 6

... HDMP-2634 Transmitter Section Timing Characteristics 3. 3. Symbol Parameter t TX[0:9] Input Data and TBC Clock Transition Range (TX_RATE = 1) ps TXCT t TX[0:9] Input Data and TBC Clock Valid Time (TX_RATE = 1) TXCV t TX[0:9] Setup Time to Falling Edge of TBC (TX_RATE = 0) TXSETUP t TX[0:9] Hold Time from Falling Edge of TBC (TX_RATE = 0) ...

Page 7

... SO± TX[0..9] 10-BIT CHAR B TBC Figure 4. Transmitter latency. TX[0] is first bit HDMP-2634 Receiver Section Timing Characteristics 3. 3. Symbol Parameter f_lock Frequency Lock at Powerup with REFCLK Active [1,2] b_sync Bit Sync Time [3] t_rxlat Receiver Latency Notes: 1. This is the recovery time for input phase jumps, per the Fibre Channel Specification X3.230-1994 FC-PH Standard, Sec 5.3. ...

Page 8

... Table 1. HDMP-2634 RX, RBC[0:1] Timing Dependence on RX_RATE and RBC_SYNC. Input Settings Resulting Behaviors Case RX_RATE RBC_SYNC SI Rate (GBd) RBC Rate (MHz) Timing Diagrams for RBC0, RBC1, RX[ DELAY = 0.5 - 2.0 ns SSTL_2 OUTPUT DRIVER Figure 5. Test conditions for SSTL_2 output driver. ...

Page 9

RBC0 RBC1 RXS RX[0:9] Figure 5a. Receiver section timing – case A. Case A of Table 1. (RX_RATE = 0, RBC_SYNC = 3. 3. ...

Page 10

RBC0 RBC1 RX[0:9] Figure 5b. Receiver section timing – case B. Case B of Table 1. (RX_RATE = 0, RBC_SYNC = 3. 3. ...

Page 11

RBC0 RBC1 RX[0:9] Figure 5d. Receiver section timing – case D. Case D of Table 1. (RX_RATE = 1, RBC_SYNC = 3. 3. ...

Page 12

... CC Symbol Parameter [1] I Transceiver Supply Current (total of all supplies) CC, TRx [1] P Transceiver Total Power Dissipation D, TRx Note: 1. Measurement Conditions: Tested sending 2.5 GBd 2 resistor. HDMP-2634 PECL DC Electrical Specifications for REFCLK[ Symbol Parameter V PECL Input High Voltage Level IH,PECL V PECL Input Low Voltage Level ...

Page 13

... Parameter V LVTTL Input High Voltage Level IH,LVTTL V LVTTL Input Low Voltage Level IL,LVTTL SSTL_2 I/O Parameters HDMP-2634 Recommended DC Operating Conditions and DC Electrical Characteristics 3. 3.45 V, VDDQ = 2. 2.70 V. VDDQ is the FC-1/MAC device I/O supply voltage SSTL_2 inputs can receive LVTTL signals successfully. SSTL_2 outputs do not output LVTTL compliant levels. ...

Page 14

... HDMP-2634 Transmitter Section Output Jitter Characteristics 3. 3. Symbol Parameter [1] RJ Random Jitter [2] DJ Deterministic Jitter at SO (peak-to-peak), K28.5+/K28.5– Pattern DJ Deterministic Jitter at SO (peak-to-peak), CRPAT Notes: 1. Defined by Fibre Channel Specification X3.230-1994 FC-PH, Annex A, Section A.4.4 (oscilloscope method) and tested using the setup shown in Figure 8b ...

Page 15

... HP 70311A CLOCK SOURCE N/C CLOCK CLOCK OUT MODULATION IN 2.5 GHz Tx[0:9] HDMP-2634 TBC 2.5 GBd SERDES REFCLK 125 MHz for these devices is 38 C/W for the HDMP-2634 83480A SCOPE SO ± 10 bits HP 83480A SCOPE STATIC K28.7 0011111000 SO ± Units Typ. C/W 9.3 ...

Page 16

... HS_OUT Zo Zo ESD PROTECTION NOTE: HS_IN INPUTS SHOULD NEVER BE CONNECTED TO GROUND AS PERMANENT DAMAGE TO THE DEVICE MAY RESULT MAY ALSO BE USED. Figure 10. HS_OUT and HS_IN simplified circuit schematic for HDMP-2634. 16 (SO+) – (SO–) STEADY-STATE OUTPUT LEVEL 1.11 V STEADY-STATE OUTPUT LEVEL 820 mV 570 mV ...

Page 17

... SHOULD BE 500-1000 . 1% RESISTORS SHOULD BE USED FOR R1 AND R2. WHEN USING THE CONFIGURATION ABOVE, VREFT TO THE MAC DEVICE SHOULD BE SET TO 1.25 V NOMINAL. USING THIS VALUE CENTERS VREFR RELATIVE TO THE RX[0:9] OUTPUT SWINGS PROVIDED BY THE HDMP-2634. Figure 11. I-SSTL2 and O-SSTL2 simplified circuit schematic. I/O Type Definitions ...

Page 18

... TX_RATE 14 I-SSTL2 Transmit Rate Set: If set to low, the HDMP-2634 reads TX[0:9] data on the falling edge of TBC and serializes it. This corresponds to a 1.25 GBd serial stream. If set to high, the HDMP-2634 reads TX[0:9] data between both edges of TBC and serializes it. This corresponds to a 2.5 GBd serial stream. ...

Page 19

... VREFT 05 S Voltage Reference Input: Used with I-SSTL2 inputs to the HDMP-2634. (Figure 11.) VREFR 47 S Voltage Reference Output: Used with O-SSTL2 outputs from the HDMP-2634. (Figure 11.) V _SSTL 37 S SSTL I/O Supply Voltage for SSTL_2. Normally 3.3 V. All necessary voltages for CC 42 SSTL_2 operation are internally generated ...

Page 20

... Table 2. Pin Definitions for HDMP-2634, continued Name Pin Type Signal GND_TXHS 64 S High Speed Ground: Normally 0 volts. Used for HS_IN cell. GND_SSTL 32 S SSTL Ground: Normally 0 volts. Used for SSTL_2 I/ N Connect. Any voltage between GND and (OPTIONAL) CB11 0.1 µF ...

Page 21

... TX[6] RBC_SYNC 10 TX[7] 11 TX[8] 12 TX[9] 13 TX_RATE 14 GND_TXA 15 TXCAP1 xxxx-x = WAFER LOT NUMBER–BUILD NUMBER Rz.zz = DIE REVISION S = SUPPLIER CODE YYWW = DATE CODE (YY = YEAR WORK WEEK) COUNTRY = COUNTRY OF MANUFACTURE Figure 13. HDMP-2634 package layout and marking, top view HDMP-2634 41 40 xxxx-x Rz. YYWW (MARKED ON BACK OF DEVICE) ...

Page 22

... Package Information Item Package Material Lead Finish Material Lead Finish Thickness Lead Skew Lead Coplanarity (Seating Plane Method) Mechanical Dimensions of HDMP-2634 PIN # TOP VIEW DIMENSIONAL PARAMETER (MILLIMETERS) VALUE TOLERANCE 22 Details Metric Metal QFP 85% Tin, 15% Lead 200-800 micro-inches 0.20 mm max. 0.08 mm max. ...

Page 23

Data subject to change. Copyright © 2000 Agilent Technologies, Inc. December 14, 2000 5980-2107E ...

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