MAX3882A View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX3882A
Maxim Integrated
MAX3882A Datasheet PDF : 13 Pages
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2.488Gbps 1:4 Demultiplexer with Clock and
Data Recovery and Limiting Amplifier
PIN
1, 11, 16, 23, 29
2, 5, 31, 32
3
4
6
7
8
9
10
12, 14
13
15, 28
17
18
19
20
21
22
24
25
26
27
30
33
34
35
36
—
NAME
GND
VCC
SDI+
SDI-
SLBI+
SLBI-
SIS
LOL
LREF
VCC_VCO
FIL
VCC_OUT
PCLK-
PCLK+
PD0-
PD0+
PD1-
PD1+
PD2-
PD2+
PD3-
PD3+
FREFSET
CAZ+
CAZ-
VREF
VCTRL
EP
Pin Description
FUNCTION
Supply Ground
+3.3V Supply Voltage
Positive Data Input. 2.488Gbps serial data stream, CML.
Negative Data Input. 2.488Gbps serial data stream, CML.
Positive System Loopback Input or Positive Reference Clock Input, CML
Negative System Loopback Input or Negative Reference Clock Input, CML
Signal Input Selection, LVTTL. Low for normal data, high for system loopback.
Loss-of-Lock Output, LVTTL, Active Low
TTL Control Input for PLL Clock Holdover. Low for PLL lock to reference clock, high for PLL
lock to input data.
Supply Voltage for the VCO
PLL Loop-Filter Capacitor Input. Connect a 0.068μF loop-filter capacitor between FIL and
VCC_VCO.
Supply Voltage for LVDS Output Buffers
Negative Clock Output, LVDS
Positive Clock Output, LVDS
Negative Data Output, LVDS
Positive Data Output, LVDS
Negative Data Output, LVDS
Positive Data Output, LVDS
Negative Data Output, LVDS
Positive Data Output, LVDS
Negative Data Output, LVDS, MSB
Positive Data Output, LVDS, MSB
Sets Reference Frequency. LVTTL low for 622MHz/667MHz reference, high for
155MHz/167MHz reference.
Positive Capacitor Input for DC Offset-Cancellation Loop. Connect a 0.1μF capacitor
between CAZ+ and CAZ-.
Negative Capacitor Input for DC Offset-Cancellation Loop. Connect a 0.1μF capacitor
between CAZ+ and CAZ-.
2.2V Bandgap Reference Voltage Output. Optionally used for threshold adjustment.
Analog Control Input for Threshold Adjustment. Connect to VCC to disable threshold adjust.
Exposed Pad. The exposed pad must be soldered to the circuit board ground for proper
thermal and electrical performance.
6 _______________________________________________________________________________________
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