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MAX9242 Datasheet(PDF) 11 Page - Maxim Integrated Products

Part No. MAX9242
Description  21-Bit Deserializers with Programmable Spread Spectrum and DC Balance
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX9242 Datasheet(HTML) 11 Page - Maxim Integrated Products

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21-Bit Deserializers with Programmable
Spread Spectrum and DC Balance
______________________________________________________________________________________
11
Pin Description
PIN
NAME
FUNCTION
1
RxOUT17
2
RxOUT18
Channel 2 Single-Ended Outputs
3, 25, 32,
38, 44
GND
Ground
4
RxOUT19
5
RxOUT20
Channel 2 Single-Ended Outputs
6
SSG
Three-Level-Logic, Spread-Spectrum Generator Control Input. SSG selects the frequency spread of
RxCLKOUT relative to RxCLKIN (see Table 3).
7
DCB
Three-Level-Logic, DC-Balance Control Input. DCB selects DC-balanced, non-DC-balanced, or reserved
operation (see Table 1).
8
RxIN0-
Inverting Channel 0 LVDS Serial-Data Input
9
RxIN0+
Noninverting Channel 0 LVDS Serial-Data Input
10
RxIN1-
Inverting Channel 1 LVDS Serial-Data Input
11
RxIN1+
Noninverting Channel 1 LVDS Serial-Data Input
12
LVDSVCC
LVDS Supply Voltage. Bypass LVDSVCC to GND with 0.1µF and 0.001µF capacitors in parallel as close to
the pin as possible.
13, 18
LVDSGND
LVDS Ground
14
RxIN2-
Inverting Channel 2 LVDS Serial-Data Input
15
RxIN2+
Noninverting Channel 2 LVDS Serial-Data Input
16
RxCLKIN-
Inverting LVDS Parallel-Rate Clock Input
17
RxCLKIN+
Noninverting LVDS Parallel-Rate Clock Input
19, 21
PLLGND
PLL Ground
20
PLLVCC
PLL Supply Voltage. Bypass PLLVCC to GND with 0.1µF and 0.001µF capacitors in parallel as close to
the pin as possible.
22
PWRDWN
5V-Tolerant LVTTL/LVCMOS Power-Down Input.
PWRDWN is internally pulled down to GND. Outputs are
high impedance when
PWRDWN = low or open.
23
RxCLKOUT
Parallel-Rate Clock Single-Ended Output. The MAX9242 has a rising-edge strobe. The MAX9244/MAX9246/
MAX9254 have a falling-edge strobe.
24
RxOUT0
26
RxOUT1
27
RxOUT2
Channel 0 Single-Ended Outputs
28, 36, 48
VCCO
Output Supply Voltage. Bypass each VCCO to GND with 0.1µF and 0.001µF capacitors in parallel as
close to the pin as possible.
29
RxOUT3
30
RxOUT4
31
RxOUT5
33
RxOUT6
Channel 0 Single-Ended Outputs


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