MAX9208 Maxim, MAX9208 Datasheet

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MAX9208

Manufacturer Part Number
MAX9208
Description
The MAX9206/MAX9208 deserializers transform a highspeed serial bus low-voltage differential signaling (BLVDS) data stream into 10-bit-wide parallel LVCMOS/LVTTL data and clock
Manufacturer
Maxim
Datasheet

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Part Number:
MAX9208EAI
Manufacturer:
MAXIM/美信
Quantity:
20 000
19-2130; Rev 2; 11/10
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 PCB 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_
________________________________________________________________ Maxim Integrated Products
10
General Description
PLL
DSLAMs
Network Switches and
Routers
Backplane Interconnect
TIMING AND
CONTROL
Applications
MAX9205
MAX9207
10-Bit Bus LVDS Deserializers
OUT+
OUT-
100Ω
EN
PWRDN
PCB OR TWISTED PAIR
LVDS
BUS
o Stand-Alone Deserializer (vs. SerDes) Ideal for
o Automatic Clock Recovery
o Allow Hot Insertion and Synchronization Without
o BLVDS Serial Input Rated for Point-to-Point and
o Fast Pseudorandom Lock
o Wide Reference Clock Input Range
o High 720ps (p-p) Jitter Tolerance (MAX9206)
o Low 30mA Supply Current (MAX9206 at 16MHz)
o 10-Bit Parallel LVCMOS/LVTTL Output
o Up to 600Mbps Throughput (MAX9208)
o Programmable Output Strobe Edge
o Pin Compatible to DS92LV1212A and
+ Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
Pin Configuration appears at end of data sheet.
MAX9206EAI+
MAX9206EAI/V+ -40°C to +85°C 28 SSOP
MAX9208EAI+
Unidirectional Links
System Interruption
Bus Applications
DS92LV1224
100Ω
PART
16MHz to 45MHz (MAX9206)
40MHz to 60MHz (MAX9208)
RI+
RI-
MAX9206
MAX9208
Typical Operating Circuit
-40°C to +85°C 28 SSOP
-40°C to +85°C 28 SSOP
PLL
RECOVERY
RANGE
TEMP
CLOCK
Ordering Information
TIMING AND
CONTROL
PIN-
PACKAGE
10
ROUT_
REFCLK
REN
LOCK
RCLK
RCLK_R/F
Features
REF CLOCK
RANGE
16 to 40
16 to 40
40 to 66
(MHz)
1

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MAX9208 Summary of contents

Page 1

... 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 ...

Page 2

... Storage Temperature Range .............................-65°C to +150°C CC ESD Rating (Human Body Model, RI+, RI-) .........................±8kV Lead Temperature (soldering, 10s) .................................+300°C Soldering Temperature (reflow) .......................................+260° 0.1V to 1.2V, common-mode voltage V ID CONDITIONS C = 15pF, L MAX9206 worst-case CC pattern, MAX9208 Figure 1 PWRDWN = low 0V AVCC DVCC I = -5mA OH OH ...

Page 3

... V ID CONDITIONS MAX9206 RFF MAX9208 MAX9206 MAX9208 RFTT MAX9206 RCP MAX9208 Figure 3 CLH Figure 3 CHL MAX9206, 45MHz t Figure 4 DD MAX9208, 60MHz Figure 5 ROS Figure 5 ROH RDC C = 5pF, Figure 6 HZR 5pF, Figure 6 LZR 5pF, Figure 6 ZHR 5pF, Figure 6 ...

Page 4

... CONDITIONS PLL locked to stable REFCLK; supply stable; static input; measured from DSR2 start of sync patterns at input to LOCK transition low; Figure 8 Figure 7 ZHLK MAX9206 t Figure 9 JT MAX9208 = +25°C and guaranteed by design and characterization over operating temper +3.3V 1.1V, AVCC DVCC CM MIN TYP MAX ...

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 2 RCLK_R/F ROUT_ on the rising edge of RCLK. Drive RCLK_R/F low to strobe ROUT_ on the falling ...

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 _______________________________________________________________________________________ 10-Bit Bus ...

Page 8

... 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 input, and digital circuits that deserialize and deframe the data. The MAX9206/MAX9208 have high- input jitter tolerance while receiving data at speeds from 160Mbps to 600Mbps ...

Page 9

... The sum of the zero-to-peak individual jitter sources must be less than or equal to the minimum value of t For example, at 40MHz, the MAX9205 serializer has 140ps (p-p) maximum deterministic output jitter. The zero-to-peak value is 140ps/2 = 70ps. If the intercon- Input Fail-Safe nect jitter is 100ps (p-p) with a symmetrical distribution, the zero-to-peak jitter is 50ps ...

Page 10

... Differential Traces and Termination Trace characteristics affect the performance of the MAX9206/MAX9208. Use controlled-impedance media. Avoid the use of unbalanced cables such as ribbon or ASIC MAX9205 MAX9207 ...

Page 11

... Deserializer initialized High High Deserializer initialized X = Don’t care. The MAX9206/MAX9208 deserializers can operate in a variety of topologies. Examples of double-terminated point-to-point and point-to-point broadcast are shown in Figures 10 and 11. Use 1% surface-mount termina- tion resistors. A point-to-point interface terminated at each end in the characteristic impedance of the cable or PCB traces is shown in Figure 10 ...

Page 12

... Updated Ordering Information, Absolute Maximum Ratings, and Package Information Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...

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