Texas Instruments TCM4300 Telephone User Manual


 
2–6
2.5 Operating Characteristics Over Full Range of Operating Conditions
(Unless Otherwise Noted)
2.5.1 Receive (RX) Channel Frequency Response (RXI, RXQ Input in Digital Mode)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
F
0.125 V peak-to-peak, 0 kHz to 8 kHz (see Note 4) ±0.5 ±0.75
dB
F
0.125 V peak-to-peak, 8 kHz to 15 kHz (see Note 5) ±1
dB
Frequency
0.125 V peak-to-peak, 16.2 kHz to 18 kHz (see Note 5) –26
dB
qy
response
0.125 V peak-to-peak, 18 kHz to 45 kHz (see Note 5) –30
dB
0.125 V peak-to-peak, 45 kHz to 75 kHz (see Note 5) –46
0.125 V peak-to-peak, > 75 kHz –60
Peak-to-peak
group delay
distortion
0.125 V peak-to-peak, 0 kHz to 15 kHz 2 µs
Absolute channel
delay, RXI, Q IN to
digital OUT
0.125 V peak-to-peak, 0 kHz to 15 kHz 325 µs
NOTES: 4. Deviation from ideal 0.35 square-root raised-cosine (SQRC) response
5. Stopband
2.5.2 Receive (RX) Channel Frequency Response (FM Input in Analog Mode)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
F
2.5 V peak-to-peak, 0 kHz to 6 kHz (see Note 6) ±0.5
dB
Frequency response
2.5 V peak-to-peak, 20 kHz to 30 kHz (see Note 5) –18
dB
qyp
2.5 V peak-to-peak, 34 kHz to 46 kHz (see Note 7) –48
Peak-to-peak group
delay distortion
2.5 V peak-to-peak, 0 kHz to 6 kHz 2 µs
Absolute channel delay 2.5 V peak-to-peak, 0 kHz to 6 kHz 400 µs
NOTES: 5. Stopband
6. Ripple magnitude
7. Stopband and multiples of stopband
2.5.3 Transmit (TX) Channel Frequency Response (Digital Mode)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
F
0 kHz to 8 kHz (see Note 4) ±0.3
dB
F
8 kHz to 15 kHz (see Note 4) ±0.5
dB
Frequency response
20 kHz to 45 kHz (see Note 5) –29
dB
F
requency response
45 kHz to 75 kHz (see Note 5) –55
dB
> 75 kHz (see Note 5) –60
Any 30 kHz band centered at > 90 kHz (see Note 5) –60
Peak-to-peak group
delay distortion
0 kHz to 15 kHz 3 µs
Absolute channel delay 0 kHz to 15 kHz 320 µs
NOTES: 4. Deviation from ideal 0.35 square-root raised-cosine (SQRC) response
5. Stopband