參數(shù)資料
型號： TDA7705TR
廠商： STMICROELECTRONICS
元件分類： 接收器
英文描述： AUDIO/VIDEO DEMODULATOR, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-64
文件頁數(shù)： 9/42頁
文件大?。?/td> 396K
代理商： TDA7705TR
TDA7705
Electrical specifications
Doc ID 15938 Rev 8
3.4
Electrical characteristics
VCC = 4.7 V to 5.25 V; Tamb = -40 °C to +85 °C; unless otherwise specified.
3.4.1
FM - section
Table 7.
FM - section
Symbol
Parameter
Test condition
Min
Typ
Max
Units
FM IMR mixer
Rin
Input resistance
-
90
130
170
k
Ω
Vnoise
Input noise voltage
Mix 1, Rsource = 1.5 kΩ,
noiseless
-2.5
3.1
nV/
√Hz
Mix 2, Rsource = 800 Ω,
noiseless
-2
2.5
IIP3
3rd order intercept point
Mix 1
up to Vin/tone = 90 dBV
Mix 2
up to Vin/tone = 85 dBV
122
118
125
-
dBV
FM AGC
RFAGC-Thr
RFAGC threshold, referred to
mixer input;
RF level
Mix 1, min setting
-
87
-
dBV
Mix 1, max setting
-
93
-
Mix 2, min setting
-
85
-
Mix 2, max setting
-
91
-
Threshold steps
-
2
-
dB
Threshold error
@ Tamb = 27 °C
-1.5
1.5
dB
Threshold temperature drift
-
0.016
-
dB/K
IFAGC-Thr
IFAGC threshold, referred to
mixer input; at tuned
frequency
RF level
Mix 1, min setting
-
81
-
dBV
Mix 1, max setting
-
85
-
Mix 2, min setting
-
77
-
Mix 2, max setting
-
81
-
Threshold steps
-
2
-
dB
Threshold error
@ Tamb = 27 °C
-1.5
1.5
dB
Threshold temperature drift
-
0.016
-
dB/K
-
Pin diode source current
@ Tamb = 27 °C; see note
(1)
12
-
mA
-
Pin diode sink current
-
3
-
20
A
-
Pin diode source current in
constant current mode
@ Tamb = 27 °C; see note
0.4
-
mA
1.
The current is generated by a PTAT (Proportional To Absolute Temperature) source, and has therefore a temperature
dependency described by:
ΔI/Io = ΔT/To, with Io being the current at ambient temperature (25 °C) and To the ambient
temperature (25°C) expressed in Kelvin, that is 298 K.
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