73M2901/3.3V
Advanced Single
Chip Modem
ELECTRICAL SPECIFICATIONS
(continued)
TRANSMITTER
PARAMETER
Gain Adjust
Tolerance
Total Harmonic
Distortion (THD)
CONDITIONS
By step
1Khz sine wave at output (TXAP-TXAN)
1.5Vpk(2.7dBm) for Vref=1.25V
THD = 2 and 3 harmonic.
Intermod Distortion
At output (TXAP-TXAN)
1.0kHz, 1.2 kHz sine waves summed
2.0Vpk for Vref=1.25V
Refer to CTR21 specification for complete
description of requirements
each unwanted
frequency
component
sum of
unwanted
frequency
components in
pass band
-33
dB
nd
rd
MIN
-0.3
NOM
0
MAX
0.3
UNIT
dB
-50
dB
-20
dB
below
low
tone
dB
Power Supply
Rejection Ratio
-30 dBm signal at VPA
300Hz – 30kHz. Measured TXAP to TXAN.
30.0
RECEIVER
PARAMETER
Carrier Detect On
Carrier Detect Off
Carrier Detect Hysteresis
Receive Level
Idle Channel Noise
CONDITIONS
Tip and Ring
Tip and Ring
Tip and Ring
Tip and Ring
0.2kHz - 4.0kHz
-43.0
-70
MIN
-43.0
-48.0
2.0
-9.0
-65
NOM
MAX
UNIT
dBm0
dBm0
dB
dBm0
dB
1
1
1
6
TDK [ TDK ELECTRONICS ]
