TDA7513T Datasheet, PDF (6/59 Pages) STMicroelectronics – SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR

TDA7513T
Table 6. AGC (wide AGC input connected to RFT primary through 10pF and 1KΩ)
Symbol
Parameter
Test Condition
Min Typ
WAGCsp Wide AGC starting point
VRFTprimary @ I(FMAGCOUT) =
84
5µA
WAGCRin FMWAGCIN input resistance
125
NAGCsp Narrow AGC starting point (max VRFTprimary @ I(FMAGCOUT) =
95
sensitivity)
5µA; Keyed AGC OFF
KNAGCsp Keyed narrow AGC starting
VRFTprimary @ I(FMAGCOUT) =
109
point (min sensitivity)
5µA; Keyed AGC ON;
V(SMETERTC)<0.9V
NAGCRin FMNAGCIN input resistance
10
KAGCTH Smeter for
minimum
V(SMETERTC) @ narrow AGC
0.9
high Keyed narrow programming starting point = NAGCsp
AGC maximum
sensitivity
maximum
programming
2.5
KAGCTH Smeter for
minimum
V(SMETERTC) @ narrow AGC
1.6
low
Keyed narrow programming starting point = KNAGCsp
AGC minimum
sensitivity
maximum
programming
3.2
Iout
min
AGC OFF
max
AGC ON
8
Vout min
AGC ON
0.1
max
AGC OFF
Vcc-
0.5
AGCVRout FMAGCVOUT output resistance
100
Max Unit
dBµV
Ω
dBµV
dBµV
KΩ
V
V
V
V
0.1
µA
mA
0.5
V
V
KΩ
Table 7. IF Amplifier 1 (Input at FMIFAMP1IN, fc = 10.7MHz, no mod) (Output at FMIFAMP1OUT loaded
with 330Ω) (antenna level = FMIFAMP1IN – 31dB)
Symbol
G
IIP3
Rin
Rout
Parameter
Gain
3^rd order intercept point
input resistance (single-ended)
output resistance
Test Condition
referred to FMIFAMP1IN
FMIFAMP1IN w.r.t. gnd
Min Typ Max Unit
18
dB
126
dBµV
330
Ω
330
Ω
Table 8. IF Amplifier 2 (Input at FMIFAMP2IN, fc = 10.7MHz, no mod) (Output at FMIFAMP2OUT loaded
with 330Ω) (antenna level = FMIFAMP2IN – 45dB)
Gain MUST BE SET to 14dB for ISS operation.
Symbol
Parameter
Test Condition
Min Typ Max Unit
G
minimum gain
programmable gain
6
dB
8
dB
10
dB
maximum gain
14
dB
IIP3
Input 3^rd order intercept point
referred to FMIFAMP2IN, G = 8dB
134
dBµV
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