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T-8502-EL2-DT Просмотр технического описания (PDF) - Agere -> LSI Corporation

Номер в каталогеКомпоненты Описаниепроизводитель
T-8502-EL2-DT Dual PCM codec with filters. Tape and reel. Agere
Agere -> LSI Corporation Agere
T-8502-EL2-DT Datasheet PDF : 16 Pages
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T8502 and T8503 Dual PCM Codecs with Filters
Data Sheet
July 1998
Transmission Characteristics (continued)
ac Transmission Characteristics (continued)
Table 9. Noise
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Transmit Noise,
µ-Law
NXC
— — 18 dBrnC0
Input amplifier gain = 20 dB
— — 19 dBrnC0
Transmit Noise,
A-Law
NXP
— — –68 dBm0p
Receive Noise,
µ-Law
NRC PCM code is alternating positive — — 13 dBrnC0
and negative zero
Receive Noise,
A-Law
NRP PCM code is A-law positive one — — –75 dBm0p
Noise, Single Frequency,
f = 0 kHz—100 kHz
NRS VFXIN = 0 Vrms, measurement at —
VFRO, DR = DX
— –53 dBm0
Power Supply Rejection Transmit PSRX VDD = 5.0 Vdc + 100 mVrms:
f = 0 kHz—4 kHz
36 — —
dB
f = 4 kHz—50 kHz
30 — —
dB
Power Supply Rejection Receive PSRX PCM code is positive one LSB
VDD = 5.0 Vdc + 100 mVrms:
f = 0 kHz—4 kHz
36 — —
dB
f = 4 kHz—25 kHz
40 — —
dB
f = 25 kHz—50 kHz
30 — —
dB
Spurious Out-of-band Signals at SOS 0 dBm0, 300 Hz—3400 Hz input
VFRO Relative to Input
PCM code applied:
4600 Hz—7600 Hz
— — –30
dB
7600 Hz—8400 Hz
— — –40
dB
8400 Hz—50 kHz
— — –30
dB
Table 10. Receive Gain Relative to Gain at 1.02 kHz
Frequency (Hz)
Min
Typ
Max
Unit
Below 3000
–0.150
±0.04
0.150
dB
3140
–0.570
±0.04
0.150
dB
3380
–0.735
–0.58
0.010
dB
3860
–10.7
–9.4
dB
4600 and above
–28
dB
Table 11. Transmit Gain Relative to Gain at 1.02 kHz
Frequency (Hz)
Min
Typ
Max
Unit
16.67
–35
–30
dB
40
–34
–26
dB
50
–36
–30
dB
60
–50
–30
dB
200
–1.8
–0.5
0
dB
300 to 3000
–0.150
±0.04
0.150
dB
3140
–0.570
±0.04
0.150
dB
3380
–0.735
–0.58
0.010
dB
3860
–10.7
–9.4
dB
4600 and above
–32
dB
8
Lucent Technologies Inc.
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