UPD9903 Datasheet, PDF (19/28 Pages) NEC – UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC

µPD9903
Transmission characteristics
µPC7073 (VBB = –42 to –58 V, VCC = 5 V ± 0.25 V, TA = 0 to 70 ˚C, 18 ≤ IL ≤ ILMAX (mA))
µPD9903 (TA = 0 to 70 ˚C, VDD = 5 V ± 0.25 V, VDG= VAG = 0 V, fDCLK = 2048 kHz)
Parameter
Insertion loss
Transfer loss frequency
characteristics
Gain tracking
(tone method)
Return loss
Echo attenuation
Transmit channel total
power distortion factor
(tone method)
Symbol
IL
FRX
FRR
GTX
GTR
RL
TBRL
SDX
SDR
Conditions
A-D input signal
0 dBm0 1 kHz
D-A input signal
0 dBm0 1 kHz
A-D
Reference input signal
1015 Hz 0 dBm0
60 Hz
200 Hz
300 Hz
400 to 3000 Hz
3200 Hz
3400 Hz
D-A
Reference input signal
1015 Hz 0 dBm0
60 Hz
200 Hz
300 Hz
400 to 3000 Hz
3200 Hz
3400 Hz
A-D
Reference input signal
–10 dBm0
f = 700 to 1100 Hz
+3 to –40 dBm0
–50 dBm0
–55 dBm0
D-A
Reference input signal
–10 dBm0
f = 700 to 1100 Hz
+3 to –40 dBm0
–50 dBm0
–55 dBm0
Input signal
0 dBm0
ZT = 600 Ω + 2.16 µF
300 Hz
500 to 2000 Hz
2000 to 3400 Hz
Input signal
0 dBm0
ZT = 600 Ω + 2.16 µF
300 Hz
500 to 2500 Hz
3400 Hz
A-D
Input signal
f = 700 to 1100 Hz
+3 to –30 dBm0
–40 dBm0
–45 dBm0
D-A
Input signal
f = 700 to 1100 Hz
+3 to –30 dBm0
–40 dBm0
–45 dBm0
MIN.
–0.45
–0.45
24.0
0.6
–0.15
–0.15
–0.15
0.2
0.2
0.1
–0.15
–0.15
–0.15
0.2
–0.2
–0.5
–1.0
–0.2
–0.4
–0.8
16
20
16
18
22
18
36
30
25
36
30
25
TYP.
0.0
0.0
MAX.
+0.45
+0.45
–
2.0
+0.21
+0.15
+0.65
0.8
4.0
1.0
+0.25
+0.15
+0.65
0.8
+0.2
+0.5
+1.0
+0.2
+0.4
+0.8
Units
dB
dB
dB
dB
dB
dB
19