參數(shù)資料
型號(hào)： 935198040551
廠商： NXP SEMICONDUCTORS
元件分類： 數(shù)字傳輸電路
英文描述： CLOCK RECOVERY CIRCUIT, PQFP48
封裝： PLASTIC, SOT-313, LQFP-48
文件頁(yè)數(shù)： 33/38頁(yè)
文件大?。?/td> 209K
代理商： 935198040551
1999 May 27
4
Philips Semiconductors
Product specication
SDH/SONET data and clock recovery unit
STM1/4/16 OC3/12/48 GE
OQ2541HP; OQ2541U
PINNING
SYMBOL
PIN
DESCRIPTION
ENL
1
loop mode enable input (active LOW)
GND
2
ground; note 1
CLOOP
3
clock output in loop mode (differential)
CLOOPQ
4
inverted clock output in loop mode (differential)
GND
5
ground; note 1
DLOOP
6
data output in loop mode (differential)
DLOOPQ
7
inverted data output in loop mode (differential)
GND
8
ground; note 1
DREF19
9
reference frequency select input 1 (see Table 2)
GND
10
ground; note 1
GND
11
ground; note 1
LOCK
12
phase lock detection output
i.c.
13
internally connected; note 2
GND
14
ground; note 1
CAPUPQ
15
external loop lter capacitor connection
CAPDOQ
16
external loop lter capacitor return connection
GND
17
ground; note 1
i.c.
18
internally connected; note 2
i.c.
19
internally connected; note 2
GND
20
ground; note 1
CREF
21
reference clock input (differential)
CREFQ
22
inverting reference clock input (differential)
GND
23
ground; note 1
DREF39
24
reference frequency select input 2 (see Table 2)
VEE1
25
negative supply voltage (
3.3 V); note 3
GND
26
ground; note 1
DOUT1250
27
STM mode select input 1 (see Table 3)
DOUT622
28
STM mode select input 2 (see Table 3)
GND
29
ground; note 1
DOUT155
30
STM mode select input 3 (see Table 3)
VEE2
31
negative supply voltage (
3.3 V); note 3
GND
32
ground; note 1
DIN
33
data input (differential)
DINQ
34
inverting data input (differential)
GND
35
ground; note 1
i.c.
36
internally connected; note 2
PC
37
control output for negative power supply
GND
38
ground; note 1
LOS
39
loss of signal detection output
i.c.
40
internally connected; note 2
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