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參數(shù)資料
| 型號(hào)： | L9214A |
| 廠商： | Lineage Power |
| 英文描述： | Low-Cost Ringing SLIC(低價(jià)格振鈴用戶環(huán)路接口電路) |
| 中文描述： | 低成本振鈴用戶接口（低價(jià)格振鈴用戶環(huán)路接口電路） |
| 文件頁數(shù)： | 18/44頁 |
| 文件大?。?/td> | 964K |
| 代理商： | L9214A |
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Preliminary Data Sheet
October 2000
Low-Cost Ringing SLIC
L9214A/G
18
Lucent Technologies Inc.
Electrical Characteristics
(continued)
Table 8. ac Feed Characteristics
1. Set externally either by discrete external components or a third- or fourth-generation codec. Any complex impedance R1 + R2 || C between
150
and 1400
can be synthesized.
2. This parameter is not tested in production. It is guaranteed by design and device characterization.
3. VITR transconductance depends on the resistor from ITR to VTX. This gain assumes an ideal 4750
, the recommended value. Positive cur-
rent is defined as the differential current flowing from PT to PR.
4. Tested per Figure 8. The gain reading is adjusted by the ratio of 696/660 to account for the 36
nominal ac feed resistance.
Parameter
Min
150
Typ
600
Max
1400
Unit
ac Termination Impedance
1
Total Harmonic Distortion (200 Hz
—4 kHz)
2
:
Off-hook
On-hook
Transmit Gain (f = 1004 Hz, 1020 Hz)
3
:
PT/PR Current to VITR
Receive Gain
4
(f = 1004 Hz to 1020 Hz):
RCVP or RCVN to PT—PR (gain of 8 option, L9214A)
RCVP or RCVN to PT—PR (gain of 2 option, L9214G)
Gain vs. Frequency (transmit and receive)
2
, 600
Termination
(Q.552), 1004 Hz, 1020 Hz reference:
200 Hz—300 Hz
300 Hz—3.4 kHz
3.4 kHz—3.6 kHz
3.6 kHz—20 kHz
20 kHz—266 kHz
Gain vs. Level (transmit and receive)
2
, 0 dBV Reference (Q.552):
–55 dB to +3.0 dB
Idle-channel Noise (tip/ring) 600
Termination:
Psophometric
C-Message
3 kHz Flat
Idle-channel Noise (VTX) 600
Termination:
Psophometric
C-Message
3 kHz Flat
—
—
—
—
0.3
1.0
%
%
291
300
309
V/A
7.6
1.9
8
2
8.4
2.1
—
—
–0.30
–0.05
–1.50
–3.00
—
0
0
0
–0.1
—
0.05
0.05
0.05
–0.05
–2.0
dB
dB
dB
dB
dB
–0.05
0
0.05
dB
—
—
—
–82
8
—
–77
13
20
dBmp
dBrnC
dBrn
—
—
—
–82
8
—
–77
13
20
dBmp
dBrnC
dBrn
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| L9217A | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface with Reverse Battery and PPM |
| L9218A | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface |
| L9219A | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface with Reverse Battery and Dual Current Limit |
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