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參數(shù)資料
| 型號(hào)： | ONET9901TAY |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | 10.7-GBPS TRANSIMPEDANCE AMPLIFIER WITH RSSI |
| 中文描述： | 10.7 Gbps的跨阻放大器的RSSI |
| 文件頁(yè)數(shù)： | 5/13頁(yè) |
| 文件大?。?/td> | 424K |
| 代理商： | ONET9901TAY |
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SLLS615 APRIL 2004
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
ac electrical characteristics
over recommended operating conditions (unless otherwise noted), typical operating condition is at V
CCI
= V
CCO
=
3.3 V and T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IIN,OVL
AC input overload current
2
mApp
μ
App
V/A
GHz
Input linear range
0.95 < linearity < 1.05
10-k
load, See Note 2
Differential output, 10
μ
App < IIN = < 50
μ
App
CPD = 0.2 pF
3 dB, IIN = < 50
μ
App dc
50
60
ARSSI
Z(21)
BW(H_3dB)
BW(L_3dB)
BW(H_3dB_RSSI)
IN,IN
RSSI gain
1500
2000
2500
Small signal transimpedance
4400
5500
6600
Small signal bandwidth
11.2
Low frequency 3 dB bandwidth
17
kHz
RSSI bandwidth
5
kHz
Input referred RMS noise
CPD = 0.2 pF
CPD = 0.2 pF
IIN < 1.3 mApp (K28.5 pattern)
IIN = 2 mApp (K28.5 pattern)
900
nA
Input referred noise density
8.5
pA/
√
Hz
DJ
Deterministic jitter
7
pspp
11
22
VOD(max)
Maximum differential output
voltage
IIN = 1 mApp
500
700
mVpp
NOTE 2: On the chip, a 6725-
resistor is used in parallel to the external 10-k
resistor, resulting in a total 4-k
resistor for a typical process.
By choosing an appropriate external resistor, the typical RSSI gain can be adjusted. Without an external resistor, the RSSI gain is
approximately 3360 V/A under typical conditions.
APPLICATION INFORMATION
Figure 3 shows the ONET9901TA being used as a receiver in a typical fiber optic application. The ONET9901TA
converts the electrical current generated by the PIN photodiode into a differential voltage output. The FILTER
input provides a dc bias voltage for the PIN that is low pass filtered by the combination of the internal 410-
resistor and internal capacitor. For additional power supply filtering, use an external capacitor (C
FILTER
). The
RSSI output is used to mirror the photodiode output current and must be connected via a 10-k
resistor to GND
or left open. Within the ONET9901TA, the OUT+ and OUT pins are internally terminated by a 50-
pullup to
VCCO.
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