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)： 10/42頁
文件大?。?/td> 396K
代理商： TDA7705TR
Electrical specifications
TDA7705
Doc ID 15938 Rev 8
3.4.2
AM - section
Table 8.
AM - section
Symbol
Parameter
Test condition
Min
Typ
Max
Units
AM IMR Mixer
Rin
Input resistance
-
20
30
45
k
Ω
Vout_max
Max. output voltage
without clipping
-
126
-
dBV
VN,in
Input noise voltage
Mix 1, Rsource = 1 kΩ,
noiseless
-8.5
12
nV/
√Hz
Mix 2, Rsource = 1 kΩ,
noiseless
-8.5
12
IIP3
3rd order intercept point
Mix 1,2
up to Vin/tone = 90 dBV
126
129
-
dBV
IIP2
2nd order intercept point
Mix1 1,2
up to Vin/tone = 90 dBV
-
158
-
dBV
LO hsupp
LO harmonic suppression
N=2,3,4,5,6
-
100
-
dB
N=7,9
-
85
-
AM LNA
Gain
Voltage gain
Max Gain, Rext = 1 kΩ
21
25
28
dB
Min Gain (AGC controlled)
-
12
-
Rin
Input resistance
-
1000
k
Ω
Cin
Input capacitance
-
20
pF
VN,in
Input noise voltage
-
1.0
1.4
nV/
√Hz
IIP3
3rd order intercept point
@ maximum LNA gain
-
125
-
dBV
IIP2
2nd order intercept point
@ maximum LNA gain
-
143
-
dBV
AM PIN diode
IIP2
2nd order intercept point
Full attenuation,
Csource = 80 pF, f=1 MHz
-
140
-
dBV
Rmin
Minimum resistance
-
50
80
Ω
Cin
Input capacitance
High ohmic
-
12
-
pF
AM AGC
AGC-Thr
Referred to mixer input
RF level
Mix 1,2 min setting
-
87
-
dBV
Mix 1,2 max setting
-
93
-
Thr-steps
Threshold steps
-
1
-
dB
Threshold error
@ Tamb = 27 °C
-2.5
-
2.5
Threshold temperature drift
-
-3
-
3
-
Pin diode source current
@ Tamb = 27 °C; see note
(1)
2-
10
mA
-
Pin diode sink current
-
15
35
50
A
-
Pin diode source current in
constant current mode
@ Tamb = 27 °C; see note
1.5
2.5
3.5
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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