參數(shù)資料
型號(hào)： 935263836118
廠商： NXP SEMICONDUCTORS
元件分類： 其它接口
英文描述： SPECIALTY INTERFACE CIRCUIT, PQFP32
封裝： PLASTIC, SOT-401, LQFP-32
文件頁數(shù)： 32/35頁
文件大?。?/td> 208K
代理商： 935263836118
2000 Feb 22
6
Philips Semiconductors
Product specication
SDH/SONET STM1/OC3 laser drivers
TZA3031AHL; TZA3031BHL;
TZA3031U
handbook, full pagewidth
TZA3031BHL
MBK845
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
GND
MONIN
GND
TONE
TZERO
BGAP
VCC(G)
GND
V
CC(B)
GND
LAQ
GND
BIAS
GND
LA
GND
VCC(R)
DLOOPQ
ONE
VCC(R)
ZERO
DLOOP
GND
DIN
DINQ
V
CC(R)
ALS
GND
ENL
V
CC(R)
Fig.4 Pin configuration of TZA3031BHL.
FUNCTIONAL DESCRIPTION
The TZA3031AHL, TZA3031BHL and TZA3031U laser
drivers accept a 155 Mbits/s STM1 Non-Return to Zero
(NRZ) input data stream, and generate an output signal
with sufficient current to drive a solid state Fabry Perot
(FP) or Distributed FeedBack (DFB) laser. They also
contain dual loop control circuitry for stabilizing the true
laser optical power levels representing logic 1 and logic 0.
The input buffers present a high impedance to the data
stream on the differential inputs (pins DIN and DINQ);
see Fig.5. The input signal can be at a CML level of
approximately 200 mV (p-p) below the supply voltage, or
at a PECL level up to 800 mV (p-p). The inputs can be
configured to accept CML signals by connecting pins DIN
and DINQ to VCC(R) via external 50 pull-up resistors.
If PECL compatibility is required, the usual Thevenin
termination can be applied.
handbook, full pagewidth
MGS910
10 k
10 k
DINQ, DLOOPQ
DIN, DLOOP
100
GND
VCC(R)
100
Fig.5 DIN/DINQ and DLOOP/DLOOPQ inputs.
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