oq2541bhp NXP Semiconductors, oq2541bhp Datasheet - Page 29

• 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
2000 Sep 18
handbook, full pagewidth
SDH/SONET data and clock recovery unit
STM1/4/16 OC3/12/48 GE
(1) All GND pins must be connected directly to V
(2) L1 = RF choke type Murata BLM21.
(3) The loop mode outputs are used as main outputs.
Fig.32 Application diagram showing the OQ2541B configured for the STM16/OC48 mode (2488.32 Mbits/s) with
a positive supply voltage application (V
system clock
19.44 MHz
180 nF
PRE-
AMP
180 nF
CAPDOQ
CAPUPQ
DREF19
i.c.
CREFQ
CREF
DINQ
DIN
5
15
16
33
34
21
22
9
13, 18, 19,
36, 40
16
V CC V CC
ENL
CC
1
GND
on the PCB plane of 5 V (pins 2, 5, 8, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44 and 47).
ALLON
24
(1)
2
100
nF
BYPASS
CC
OQ2541B
25
V EE1
10
= +5 V).
k
1
31
V EE2
29
8.2
100
k
1
37
PC
39
12
42
43
45
46
48
27
28
30
3.3
nF
6
7
3
4
V CC
LOS
LOCK
DOUT
DOUTQ
COUT
COUTQ
DLOOP
DLOOPQ
CLOOP
CLOOPQ
AREF
DOUT1250
DOUT622
DOUT155
1 F
OQ2541BHP; OQ2541BU
V CC
L1
(2)
10 k
LOS
normal
V CC
output
output
loop
V CC
MGT227
10 k
=
=
main
output
unused
output
LOCK
Product specification
(3)