TDA7540N Datasheet, PDF (13/76 Pages) STMicroelectronics – AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS)

TDA7540N
Electrical specifications
Table 6.
FM section electrical characteristics (continued)
(T_amb = 25°C, V_CC1 = V_CC2 = V_CC3 = V_CCST= V_CCVCO = V_CCMIX1 = V_CCMIX2 = V_CCIF1 = 8.5V,
f_RF = 98MHz, dev= 40kHz, f_MOD = 1kHz, f_Xtal = 10.25MHz, in application circuit, unless
otherwise specified).
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
V₂₂
Startpoint KAGC
Δ
Control range KAGC
R_IN
Input resistance
C_IN
Input capacitance
AGC time constant output
KAGC = max,
V_9-11 = 0mV_RMS,
Δf_IF=300KHz
2.2
V
f_IF1 generates FS level at V₂₂
ΔV₂₂= +0.8V
16
dB
10
13
16
kΩ
2.5
pF
V₁₆
Max. AGC output voltage
V_9-11 = 0mV_RMS
V_REF1
+V_BE
V
V₁₆
Min. AGC output voltage
V_9-11 = 50mV_RMS
0.5
V
I₁₆
Min. AGC charge current
V_9-11 = 0mV_RMS,V₁₆ = 2.5V
-16.5 -12.5 -8.5
μA
I₁₆
Max. AGC discharge current V_9-11 = 50mV_RMS,V₁₆ = 2.5V
0.8
1.25 1.68
mA
AGC pin diode driver output
I₈
AGC OUT, current min.
I₈
AGC OUT, current max.
I/Q Mixer1 (10.7MHz)
V_9-11 = 0mV_RMS, V₈ = 2.5V
12
μA
V_9-11 = 50 mV_RMS, V₈ = 2.5V
-22
-17
-12
mA
R_IN
C_IN
R_OUT
V_9,11
g_m
F
CP_1dB
IIP3
IQP
IRR
IRR
Input resistance
Input capacitance
Output resistance
Input DC bias
Conversion
transconductance
Noise figure
1dB compression point
3rd order intermodulation
I/Q phase adjust
Image rejection ratio
Image rejection ratio
differential
differential
differential
400Ω generator resistance
referred to diff. mixer input
PH
ratio wanted/image
with phase adjust
10
kΩ
4
pF
100
kΩ
2.2
2.5
2.8
V
17
ms
3
dB
100
dBμV
122
dBμV
-7
+8
°
30
40
dB
40
46
dB
IF1 Amplifier1 +2 (10.7MHz)
G2
G1_min
G1_max
Gain
Min. gain
Max. gain
IFG1
IFG1
5
6
7
dB
7.5
9
10.5
dB
16
18
20
dB
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