Transmission Characteristics (Continued) Unless otherwise noted, limits printed in BOLD characters are
e
e b
e
e
0 C to 70 C by correlation with 100% electrical testing at T
A
g
g
guaranteed for V
CC
5.0V 5%, V
5.0V 5%; T
§
§
BB
A
25 C. All other limits are assured by correlation with other production tests and/or product design and characterization. GNDA
§
e
0V, f
5.0V, V
e
e
e
e
1.02 kHz, V
IN
0 dBm0, transmit input amplifier connected for unity gain non-inverting. Typicals specified at V
25 C.
CC
e b
5.0V, T
§
BB
A
Symbol
Parameter
Conditions
Min
Typ
Max
Units
b
SOS
Spurious Out-of-Band Signals
at the Channel Output
Loop Around Measurement, 0 dBm0,
30
dB
300 Hz to 3400 Hz Input PCM Code Applied
at D .
R
b
b
b
4600 Hz–7600 Hz
7600 Hz–8400 Hz
8400 Hz–100,000 Hz
30
40
30
dB
dB
dB
DISTORTION
STD
STD
Signal to Total Distortion
Transmit or Receive
Half-Channel
Sinusoidal Test Method (Note 3)
e
X
Level 3.0 dBm0
e
33
36
29
30
14
15
dBC
dBC
dBC
dBC
dBC
dBC
R
b
0 dBm0 to 30 dBm0
eb
40 dBm0
XMT
RCV
XMT
RCV
eb
55 dBm0
b
b
b
SFD
SFD
IMD
Single Frequency Distortion,
Transmit
46
46
41
dB
dB
dB
X
Single Frequency Distortion,
Receive
R
Intermodulation Distortion
Loop Around Measurement,
a
eb
b
4 dBm0 to 21 dBm0, Two
VF
X
Frequencies in the Range
300 Hz–3400 Hz
CROSSTALK
e
300 Hz–3400 Hz
CT
X-R
Transmit to Receive Crosstalk,
0 dBm0 Transmit Level
f
e
b
b
b
b
D
R
Quiet PCM Code
90
90
75
70
dB
dB
e
f
e
300 Hz–3400 Hz, VF I Multitone
CT
R-X
Receive to Transmit Crosstalk,
0 dBm0 Receive Level
X
(Note 2)
ENCODING FORMAT AT D OUTPUT
X
TP3057
A-Law
TP3054
m-Law
(Includes Even Bit Inversion)
ea
X
V
IN
V
IN
V
IN
(at GS )
Full-Scale
1
0
0
0
0
0
0
0
1
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
e
(at GS ) 0V
X
Ð
eb
(at GS )
X
Full-Scale
0
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
b
Note 1: Measured by extrapolation from the distortion test result at 50 dBm0.
are measured with a 50 dBm0 activation signal applied to VF Ia
.
b
Note 2: PPSR , NPSR , and CT
X
X
R-X
X
Note 3: Devices are measured using C message weighted filter for m-Law and psophometric weighted filter for A-Law.
11
NSC [ National Semiconductor ]
