max9208eait Maxim Integrated Products, Inc., max9208eait Datasheet

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max9208eait

Manufacturer Part Number
max9208eait
Description
10-bit Bus Lvds Deserializers
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
19-2130; Rev 1; 12/07
The MAX9206/MAX9208 deserializers transform a high-
speed serial bus low-voltage differential signaling
(BLVDS) data stream into 10-bit-wide parallel LVCMOS/
LVTTL data and clock. The deserializers pair with seri-
alizers such as the MAX9205/MAX9207, which gener-
ate a serial BLVDS signal from 10-bit-wide parallel
data. The serializer/deserializer combination reduces
interconnect, simplifies PC board layout, and reduces
board size.
The MAX9206/MAX9208 receive serial data at
450Mbps and 600Mbps, respectively, over board
traces or twisted-pair cables. These devices combine
frequency lock, bit lock, and frame lock to produce a
parallel-rate clock and word-aligned 10-bit data.
Serialization eliminates parallel bus clock-to-data and
data-to-data skew.
A power-down mode reduces typical supply current to
less than 600µA. Upon power-up (applying power or
driving PWRDN high), the MAX9206/MAX9208 estab-
lish lock after receiving synchronization signals or serial
data from the MAX9205/MAX9207. An output enable
allows the outputs to be disabled, putting the parallel
data outputs and recovered output clock into a high-
impedance state without losing lock.
The MAX9206/MAX9208 operate from a single +3.3V
supply and are specified for operation from -40°C to
+85°C. The MAX9206/MAX9208 are available in 28-pin
SSOP packages.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Cellular Phone Base
Stations
Add/Drop Muxes
Digital Cross-Connects
TCLK_R/F
SYNC 1
SYNC 2
TCLK
IN_
10
________________________________________________________________ Maxim Integrated Products
PLL
General Description
TIMING AND
DSLAMs
Network Switches and
Routers
Backplane Interconnect
CONTROL
Applications
MAX9205
MAX9207
OUT+
OUT-
10-Bit Bus LVDS Deserializers
100Ω
EN
PWRDN
PC BOARD OR
TWISTED PAIR
LVDS
BUS
♦ Stand-Alone Deserializer (vs. SERDES) Ideal for
♦ Automatic Clock Recovery
♦ Allow Hot Insertion and Synchronization Without
♦ BLVDS Serial Input Rated for Point-to-Point and
♦ Fast Pseudorandom Lock
♦ Wide Reference Clock Input Range
♦ High 720ps (p-p) Jitter Tolerance (MAX9206)
♦ Low 30mA Supply Current (MAX9206 at 16MHz)
♦ 10-Bit Parallel LVCMOS/LVTTL Output
♦ Up to 600Mbps Throughput (MAX9208)
♦ Programmable Output Strobe Edge
♦ Pin Compatible to DS92LV1212A and
Pin Configuration appears at end of data sheet.
MAX9206EAI -40°C to +85°C
MAX9208EAI -40°C to +85°C
100Ω
Unidirectional Links
System Interruption
Bus Applications
DS92LV1224
RI+
RI-
PART
16MHz to 45MHz (MAX9206)
40MHz to 60MHz (MAX9208)
MAX9206
MAX9208
Typical Operating Circuit
PLL
RANGE
RECOVERY
TEMP.
CLOCK
TIMING AND
CONTROL
Ordering Information
RANGE (MHz)
REF CLOCK
10
16 to 45
40 to 60
ROUT_
REFCLK
REN
LOCK
RCLK
RCLK_R/F
Features
PIN-
PACKAGE
28 SSOP
28 SSOP
1

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max9208eait Summary of contents

Page 1

Rev 1; 12/07 General Description The MAX9206/MAX9208 deserializers transform a high- speed serial bus low-voltage differential signaling (BLVDS) data stream into 10-bit-wide parallel LVCMOS/ LVTTL data and clock. The deserializers pair with seri- alizers such as the MAX9205/MAX9207, which ...

Page 2

Bus LVDS Deserializers ABSOLUTE MAXIMUM RATINGS AGND, DGND .................................-0. RI+, RI- to AGND, DGND .........................................-0.3V to +4V All Other Pins to DGND ..............................-0. ROUT_ Short-Circuit Duration (Note 1) ......................Continuous ...

Page 3

AC ELECTRICAL CHARACTERISTICS ( +3.0V to +3.6V 15pF, differential input voltage 2. -40°C to +85°C, unless otherwise noted. Typical values are ...

Page 4

Bus LVDS Deserializers AC ELECTRICAL CHARACTERISTICS (continued) ( +3.0V to +3.6V 15pF, differential input voltage 2. -40°C to +85°C, unless otherwise noted. Typical ...

Page 5

PIN NAME 1, 12, 13 AGND Analog Ground Recovered Clock Strobe Edge Select. LVTTL/LVCMOS level input. Drive RCLK_ R/F high to strobe ROUT_ on the rising edge of RCLK. Drive RCLK_R/F low to strobe ROUT_ on the falling edge of ...

Page 6

Bus LVDS Deserializers IN2 V - 0.3V CC RI+ R IN1 R IN1 RI- Figure 2. Input Fail-Safe Circuit START SYMBOL N BIT RCLK ROUT_ Figure 4. Input-to-Output Delay RCLK RCLK_R/F = ...

Page 7

PWRDN REFCLK t RFCP RI t ZHLK LOCK HIGH-Z RCLK HIGH-Z ROUT_ HIGH-Z 2048 x t Figure 7. PLL Lock Time from PWRDN REFCLK t RFCP RI LOCK RCLK ROUT_ Figure 8. Deserializer PLL Lock Time from Sync Patterns _______________________________________________________________________________________ ...

Page 8

Bus LVDS Deserializers Detailed Description The MAX9206/MAX9208 deserialize a BLVDS serializ- er's output into 10-bit wide parallel LVCMOS/LVTTL data and a parallel rate clock. The MAX9206/MAX9208 include a PLL that locks to the frequency and phase of the serial ...

Page 9

Table 1. Typical Lock Times REFCLK 16MHz FREQUENCY DATA PSEUDORANDOM PATTERN DATA Maximum 0.749µs Maximum (Clock 11.99 Cycles) Average 0.318µs Average (Clock 5.09 Cycles) Minimum 0.13µs Minimum (Clock 2.08 Cycles) Note: Pseudorandom lock performed with PRBS pattern, ...

Page 10

Bus LVDS Deserializers t /12 RCP Figure 9. Input Jitter Tolerance Applications Information Power-Supply Bypassing Bypass each supply pin with high-frequency surface- mount ceramic 0.1µF and 0.001µF capacitors in paral- lel as close to the ...

Page 11

Table 2. Input/Output Function Table LOGIC INPUTS CONDITIONS PWRDN REN X Low Power applied and stable Low High Deserializer initialized High High Deserializer initialized X = don’t care The MAX9206/MAX9208 deserializers can operate in a variety of topologies. Examples of ...

Page 12

Bus LVDS Deserializers NOTES: 1. D&E DO NOT INCLUDE MOLD FLASH. 2. MOLD FLASH OR PROTRUSIONS NOT TO EXCEED .15 MM (.006"). 3. CONTROLLING DIMENSION: MILLIMETERS. 4. MEETS JEDEC MO150. 5. LEADS TO ...

Page 13

... Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2007 Maxim Integrated Products 10-Bit Bus LVDS Deserializers DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc. Revision History PAGES CHANGED — ...

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