參數(shù)資料
型號: 73M1903C-IM
廠商: TERIDIAN SEMICONDUCTOR CORP
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, QCC32
封裝: LEAD FREE, QFN-32
文件頁數(shù): 27/45頁
文件大?。?/td> 459K
代理商: 73M1903C-IM
73M1903C
Modem Analog Front End
DATA SHEET
Page: 33 of 45
2005 TERIDIAN Semiconductor Corporation
Rev 3.4
Transmitter
Parameter
Test Condition
Min
Nom
Max
Units
DAC gain
(Transmit Path Gain)
Code word of
± 32,767 @1kHz;
TXBST0=0; DTMFBST=0
70
v/bit
DC offset –
Differential Mode
Across TXAP and TXAN for
DAC input = 0
-100
100
MV
DC offset – Common
Mode
Average of TXAP and TXAN for DAC input = 0;
relative to VREF
-80
80
MV
TXBST0 Gain
Code word of
± 32,767 @1kHz;
relative to TXBST0=0; TXBST1=0
1.65
DB
DTMFBST Gain
Code word of
± 32,767 @1kHz;
relative to TXBST0=0; TXBST1=0
1.335
DB32
Total Harmonic
Distortion (THD)
Code word of
± 24,575 (75% scale) @1kHz;
relative to TXBST0=0;TXBST1=0
THD = 2
nd and 3rd harmonic.
-80
-85
dB
Code word of
± 26,213 (80% scale) @1kHz;
relative to TXBST0=0;TXBST1=0
THD = 2
nd and 3rd harmonic.
-75
-85
dB
1200 Resistor
across TNAN/TXAP
Code word of
± 29,490 (90% scale) @1kHz;
relative to TXBST0=1;TXBST1=1
THD = 2
nd and 3rd harmonic.
-60
-70
dB
Code word of
± 29,490(90% scale) @1kHz;
relative to TXBST0=1;DTMFBST=1
THD = 2
nd and 3rd harmonic
-70
dB
Intermod Distortion
At output (TXAP-TXAN): DTMF
1.0kHz, 1.2kHz sine waves, summed
2.0Vpk (-2dBm tone summed with 0dBm tone)
Refer to TBR 21 specifications for description of
complete requirements.
70
dB
below
low
tone
Idle Channel Noise
200Hz - 4.0kHz
110
V
PSRR
-30 dBm signal at VPA
300Hz – 30kHz
40
dB
Passband Ripple
300Hz - 3.2kHz
-0.125
0.125
dB
Transmit Gain
Flatness
Code word of
± 32,767 @1kHz. Measure gain at
0.5kHz, and 2KHz relative to 1kHz.
Gain at 0.5kHz
Gain at 1kHz (Normalized)
Gain at 2.0kHz
Gain at 3.3kHz
0.17
0
0.193
-0.12
dB
Table 16: -Transmitter Performance Specifications
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