TCM8000 Datasheet, PDF (12/19 Pages) Texas Instruments – CELLULAR TELEPHONE AUDIO PROCESSOR

TCM8000
CELLULAR TELEPHONE AUDIO PROCESSOR
SCTS041A – D4086, AUGUST 1992 – REVISED APRIL 1993
receive path specifications, V_CC = 5 V, f_xtal = 3.58 MHz (continued)
noise and distortion at HFO/HSO, RXTRIM = <1000>, VC = <1000>, expander enabled (see Table 1)
PARAMETER
MIN MAX
Psophometrically-weighted rms noise, RXIN = VBRX
1
Total harmonic distortion, RXIN = 200 mV rms at 1 kHz
1%
UNIT
mV
receive path switch attenuation (see Table 1)
PARAMETER
Attenuation
TEST CONDITIONS
CTI, CTM = 1
TDI, RTM = 1
RXVOICE, RVM = 1
LSSW, HSS = 0/1
MIN MAX UNIT
50
50
dB
50
50
receive data frequency response, NMT mode, RXIN = 100 mVrms, RXTRIM = <1000> (see Figure 11 and
Table 1)
Gain
Relative gain
PARAMETER
TEST CONDITIONS
f = 1.5 kHz
f = 100 Hz
f = 600 Hz
f = 800 Hz
f = 900 Hz
f = 2.2 kHz
f = 10 kHz
MIN
8
3.4
3.4
– 4.3
MAX
10
– 10
5.4
5.4
5.4
– 2.3
– 15.5
UNIT
dB
dB
receive data frequency response, AMPS/ TACS mode, RXIN = 100 mVrms, RXTRIM = <1000> (see Figure 12
and Table 1)
Gain
Relative gain
PARAMETER
TEST CONDITIONS
f = 1 kHz
f = 8 kHz
f = 16 kHz
f = 40 kHz
f = 100 kHz
MIN MAX UNIT
5
7 dB
±1
–6
1
dB
– 18
– 18
receive SAT path frequency response, NMT mode, RXIN = 100 mVrms, RXTRIM = <1000>, SATTRIM = <100>
(see Figure 13 and Table 1)
PARAMETER
TEST CONDITIONS
MIN MAX UNIT
Gain
f = 4 kHz
3
5 dB
f = 100 Hz
– 35
f = 2 kHz
– 35
f = 3.2 kHz
– 25
f = 3.4 kHz
– 20
Relative gain
f = 3.8 kHz
f = 3.94 kHz
f = 4.06 kHz
f = 4.2 kHz
– 5 0.5
± 0.5 dB
± 0.5
– 5 0.5
f = 5 kHz
– 20
f = 6 kHz
– 35
f = 10 kHz
– 35
12
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