oq2541bhp NXP Semiconductors, oq2541bhp Datasheet - Page 27

• Manufacturer Part Number: oq2541bhp
• Description: Oq2541bhp; Oq2541bu Sdh/sonet Data And Clock Recovery Unit Stm1/4/16 Oc3/12/48 Ge
• Manufacturer: NXP Semiconductors

Philips Semiconductors
APPLICATION INFORMATION
2000 Sep 18
handbook, full pagewidth
SDH/SONET data and clock recovery unit
STM1/4/16 OC3/12/48 GE
(1) All pins GND must be connected directly to the PCB ground plane (pins 2, 5, 8, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44 and 47).
(2) L1 = RF choke type Murata BLM21.
Fig.30 Application diagram showing the OQ2541B configured for the STM16/OC48 mode (2488.32 Mbits/s).
system clock
19.44 MHz
180 nF
PRE-
AMP
180 nF
CAPDOQ
CAPUPQ
DREF19
i.c.
CREFQ
CREF
DINQ
DIN
5
15
16
13, 18, 19,
36, 40
33
34
21
22
9
16
ENL
1
GND
ALLON
24
(1)
2
100
nF
BYPASS
25
OQ2541B
V EE1
10
k
1
27
31
V EE2
6.8
100
k
1
37
PC
39
12
42
43
45
46
48
27
28
30
3.3
nF
6
7
3
4
LOS
LOCK
DOUT
DOUTQ
COUT
COUTQ
DLOOP
DLOOPQ
CLOOP
CLOOPQ
AREF
DOUT1250
DOUT622
DOUT155
OQ2541BHP; OQ2541BU
1 F
L1
3.3 V
3.3 V
(2)
MGT225
10 k
10 k
output
normal
output
4.5 V
loop
Product specification