Datasheet
Transmission Characteristics (Continued) Unless otherwise noted, limits printed in BOLD characters are
guaranteed for V
CC
e
5.0V
g
5%, V
BB
eb
5.0V
g
5%; T
A
e
0
§
Cto70
§
C by correlation with 100% electrical testing at T
A
e
25
§
C. All other limits are assured by correlation with other production tests and/or product design and characterization. GNDA
e
0V, f
e
1.02 kHz, V
IN
e
0 dBm0, transmit input amplifier connected for unity gain non-inverting. Typicals specified at V
CC
e
5.0V, V
BB
eb
5.0V, T
A
e
25
§
C.
Symbol Parameter Conditions Min Typ Max Units
SOS Spurious Out-of-Band Signals Loop Around Measurement, 0 dBm0,
b
30 dB
at the Channel Output 300 Hz to 3400 Hz Input PCM Code Applied
at D
R
.
4600 Hz–7600 Hz
b
30 dB
7600 Hz–8400 Hz
b
40 dB
8400 Hz–100,000 Hz
b
30 dB
DISTORTION
STD
X
Signal to Total Distortion Sinusoidal Test Method (Note 3)
STD
R
Transmit or Receive
e
3.0 dBm0Level 33 dBC
Half-Channel
e
0 dBm0 to
b
30 dBm0 36 dBC
XMT
eb
40 dBm0 29 dBC
RCV 30 dBC
XMT
eb
55 dBm0 14 dBC
RCV 15 dBC
SFD
X
Single Frequency Distortion,
b
46 dB
Transmit
SFD
R
Single Frequency Distortion,
b
46 dB
Receive
IMD Intermodulation Distortion Loop Around Measurement,
b
41 dB
VF
X
a
eb
4 dBm0 to
b
21 dBm0, Two
Frequencies in the Range
300 Hz–3400 Hz
CROSSTALK
CT
X-R
Transmit to Receive Crosstalk, f
e
300 Hz–3400 Hz
0 dBm0 Transmit Level D
R
e
Quiet PCM Code
b
90
b
75 dB
CT
R-X
Receive to Transmit Crosstalk, f
e
300 Hz–3400 Hz, VF
X
I
e
Multitone
b
90
b
70 dB
0 dBm0 Receive Level (Note 2)
ENCODING FORMAT AT D
X
OUTPUT
TP3054
TP3057
m-Law
A-Law
(Includes Even Bit Inversion)
V
IN
(at GS
X
)
ea
Full-Scale 10000000 10101010
V
IN
(at GS
X
)
e
0V
11111111 11010101
Ð01111111 01010101
V
IN
(at GS
X
)
eb
Full-Scale 00000000 00101010
Note 1: Measured by extrapolation from the distortion test result at
b
50 dBm0.
Note 2: PPSR
X
, NPSR
X
, and CT
R-X
are measured with a
b
50 dBm0 activation signal applied to VF
X
I
a
.
Note 3: Devices are measured using C message weighted filter for m-Law and psophometric weighted filter for A-Law.
11