參數(shù)資料
型號(hào): MAX3872EGJ
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi): 數(shù)字傳輸電路
英文描述: Multirate Clock and Data Recovery with Limiting Amplifier
中文描述: CLOCK RECOVERY CIRCUIT, QCC32
封裝: 5 X 5 MM, 0.90 MM HEIGHT, MO-220, QFN-32
文件頁(yè)數(shù): 7/13頁(yè)
文件大?。?/td> 580K
代理商: MAX3872EGJ
M
Multirate Clock and Data Recovery
with Limiting Amplifier
_______________________________________________________________________________________
7
Pin Description
PIN
NAME
V
CC
SDI+
SDI-
SLBI+
SLBI-
SIS
FUNCTION
1, 4, 27
2
3
5
6
7
+3.3V Supply Voltage
Positive Serial Data Input, CML
Negative Serial Data Input, CML
Positive System Loopback Input or Reference Clock Input, CML
Negative System Loopback Input or Reference Clock Input, CML
Signal Selection Input, LVTTL. Set low for normal operation, set high for system loopback.
8
LREF
Lock to Reference Clock Input, LVTTL. Set high for PLL lock to serial data, set low for PLL lock to
reference clock.
9
LOL
Loss-of-Lock Output, LVTTL. Active low.
10, 11, 16,
25, 32
GND
Supply Ground
12
FIL
PLL Loop Filter Capacitor Input. Connect a 0.82μF capacitor between FIL and VCC_VCO.
+3.3V Supply Voltage for the VCO
Multirate Select Input 1, LVTTL (Table 2)
Multirate Select Input 2, LVTTL (Table 2)
VCO Frequency Select Input, LVTTL (Table 2)
Negative Serial Clock Output, CML
Positive Serial Clock Output, CML
+3.3V Supply Voltage for the CML Outputs
Negative Serial Data Output, CML
Positive Serial Data Output, CML
Reference Clock Frequency Select Input, LVTTL (Tables 2 and 3)
13, 18
14
15
17
19
20
21, 24
22
23
26
VCC_VCO
RS1
RS2
RATESET
SCLKO-
SCLKO+
VCC_OUT
SDO-
SDO+
FREFSET
28
CAZ+
Positive Capacitor Input for DC-Offset Cancellation Loop. Connect a 0.1μF capacitor between CAZ+
and CAZ-.
29
CAZ-
Negative Capacitor Input for DC-Offset Cancellation Loop. Connect a 0.1μF capacitor between CAZ+
and CAZ-.
30
31
V
REF
V
CTRL
Exposed
Pad
+2.2V Bandgap Reference Voltage Output. Optionally used for threshold adjustment.
Analog Control Input for Threshold Adjustment. Connect to V
CC
to disable threshold adjust.
Ground. The exposed pad must be soldered to the circuit board ground for proper thermal and
electrical performance.
EP
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