TDA7513T_07 Datasheet, PDF (17/84 Pages) STMicroelectronics – Single chip FM/AM tuner with stereo decoder and audio processor

TDA7513T
Electrical characteristcs
Table 16. AGC1
(Wide AGC input = AM Mixer1 input; Narrow AGC input = AM Mixer2 input; Ultra Narrow
AGC input = AM IF2 Amp input; fWAGCin = 999kHz, fNAGCIN = 10.7MHz, fUNAGCin =
450kHz)
Symbol
Parameter
Test condition
Min Typ Max Unit
WAGCsp
Wide AGC min
starting point max
AMMIX1IN+ @
I(AMAGC1VOUT) = 1 uA
85
dBμV
104
dBμV
NAGCsp
NarrowAGC min
starting point max
UNAGCsp
Ultra Narrow
AGC
min
starting point max
AGC1R AGC1 filtering resistor
Iout
min
max
AMMIX1IN+ @
I(AMAGC1VOUT) = 1 uA
AMMIX1IN+ @
I(AMAGC1VOUT) = 1 uA
AMAGC1TC pin
AGC OFF
AGC ON
79
97
50
97
100
0.4
dBμV
dBμV
dBμV
dBμV
KΩ
1 μA
mA
Vout min
AGC ON
0.5 V
max
AGC OFF
3.38
V
AGC1VRout
AMAGC1VOUT output
resistance
23
KΩ
Table 17. Mixer2
(Input at AMMIX2IN, fc = 10.7MHz, no mod)
Symbol
Parameter
Test condition
Min Typ Max Unit
Gv, max conversion gain, no AGC
from AMMIX2IN to IFT2
secondary loaded with 2k Ω
15
dB
Gv, min conversion gain, full AGC
IIP3
Rin
CIFT2
Input 3^rd order intercept
point
input resistance
IFT2
min
adjustment max
capacitor
step
from AMMIX2IN to IFT2
secondary loaded with 2kΩ
referred to AMMIX2IN, no
AGC
AMMIX2IN w.r.t. ground
Between AMMIX2OUT and
gnd
-7
dB
120
dBμV
330
W
0
pF
24
pF
1.6
pF
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