73M2901CLIGT 查看數據表（PDF） - TDK Corporation
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73M2901CLIGT Datasheet PDF : 18 Pages
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73M2901CL
V.22bis Single Chip Modem
TRANSMITTER
PARAMETER
ITU Guard tone power
Calling Tone
Answer Tone power
DTMF Transmit power
Gain adjust tolerance
Total Harmonic Distortion
(THD)
CONDITIONS
550Hz
(relative to carrier)
1800Hz
(relative to carrier)
1300Hz
2225Hz/2100Hz
High band tones
Low band tones
By step
1KHz sine wave at output
(TXAP-TXAN)
1.5Vpk(2.7dBm) for
Vref=1.25V
THD=2nd and 3rd harmonic
Intermod Distortion
At output (TXAP-TXAN)
1KHz, 1.2KHz sine waves
summed
2Vpk for Vref=1.25V
Power supply rejection ratio
-30dBm signal at VPA
300Hz-30KHz. Measured
TXAP to TXAN
MIN
-5
-8
-11
-11
-12
-13.7
-0.3
NOM
-3.5
-6.5
-10
-10
-11.5
-13.2
0
MAX
-2
-5
-9
-9
-11
-12.7
0.3
UNIT
dB
dB
dBm0*
dBm0*
dBm0*
dBm0*
dBm0*
-50
dB
Each unwanted
frequency
-33
dBm
component
Sum of unwanted
frequency
components in pass
-20
band
dB
below
low tone
30
dB
MAXIMUM TRANSMIT LEVEL
PARAMETER
QAM
CONDITIONS
Vref=1.25V
MIN
NOM
MAX
UNIT
-9.6
dBm0*
DPSK
VPA=3.3V
Vref=1.25V
-7.4
dBm0*
VPA=3.3V
FSK
Vref=1.25V
-5.3
dBm0*
VPA=3.3V
DTMF (HIGH TONE)
Vref=1.25V S13=$20,
-8
-7
dBm0*
VPA=3.3V S85=80
DTMF (LOW TONE)
Vref=1.25V S13=$20,
-9.7
-8.7
dBm0*
VPA=3.3V S85=80
* dBm0 refers to the TDK recommended line interface (8.5dB loss from transmit pins to the line and 3.5dB loss from the line to the receiver pin). Results
may vary depending on the selected DAA components. 0dBm=0.775mvrms; dBm=20log(Vrms/(0.775mvrms)
6
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