NS32FV100 Datasheet, PDF (93/96 Pages) Texas Instruments – NS32FX100 NS32FV100 NS32FX200 System Controller

Appendix A Codec Transmission Performance
The Sigma Delta Codec transmission performance of a typi-
cal complete system including DAA is according to the fol-
lowing test conditions
canceling filter is disabled The transmission absolute accu-
racy is measured after auto-calibration of the measuring cir-
cuit
The measurement analog circuit is according to Figure 2-5
The measurements are performed on the line with 600X
termination The transmit and receive gains are pro-
grammed for amplification attenuation of 0 dB The Echo-
Electrical test conditions
T_A e 25 C
Digital Supplies V_CCD e 5V g10% GND e 0V
Analog Supplies V_CCA e g5V g5%
V_EE e g12V g10%
TABLE A-1 Transmitter Performance
Parameter
Conditions
Min
Typ
Max
Unit
Tx Peak Level
b2 1
a2 1
V
Maximum Level
tx a3 14 dbmo
a6 00
dbm
Transmit Gain
Absolute Accuracy
Transmit Gain
Variation with Frequency
te ^{Transmit Noise}
Psofometric Weighted
Spurious Out of Band
le ^{Signal to Total Distortion}
Half Channel Sine Method
(without transformer
Obso ^distortion)
300 Hz
500 Hz – 3000 Hz
3400 Hz
3900 Hz
5 1 kHz – 7 2 kHz
7 2 kHz – 20 kHz
20 kHz – 100 kHz
Level e3 dbmo
b10 dbmo
(b18) 0 dbmo
(b38) (b18)dbmo
b45 dbmo
b0 5
b0 5
b0 3
b2 0
40
67
60
40
32
b88
69
a0 5
db
a0 5
db
a0 3
db
a0 0
db
b12
db
b85 dbmPo
b45
db
b60
db
b65
db
dbP
dbP
dbP
dbP
dbP
92