TDA4321XS Datasheet, PDF (10/16 Pages) List of Unclassifed Manufacturers – FM-IF IC with counter output, analog STS, field strength indicator, noise detector and mute setting

FS: 04/93
Page 10
SIEMENS AG
IC-SPECIFICATION
TDA 4321 XS
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AC / DC Characteristics
AC / DC characteristics involve the spread of values guaranteed within the specified supply voltage and ambient
temperature range. Typical characteristics are the median of the production.
# Parameter
Symbol
Test
Conditions
Test
Min
Typ
Max Units
Circuit
Measuring condition:
V_S= 10 V; f_iIF=10.7 MHz; ∆f= 75 kHz; f_mod= 1 kHz;V_iIF =10 mV_rms; T_amb= +25°C
14 Attack current
I₄*)
V_3AC=1V_pp; V_m=5.0V
15 Recovery current
I₄*)
V_3AC=0V; V_m=3.6V
16 Start voltage
V_5Def V_3AC=0V
17 Detector characteristic V₅
V₃ =100mV_pp
18 Detector characteristic V₅
V₃ =350mV_pp
19 AF mute
a_AF
V₁₉=4.8V ;V₁₈=4.8V
V₁₉=0V ;V₁₈=4.8V
V₁₉=0V ;V₁₈=2.4V
V₁₉=4.8V ;V₁₈≤1.0V
V₁₉=0V ;V₁₈≤ 1.0V
20 Voltage for mute off V₁₉
21 Voltage for mute on V₁₉
22 Search tuning stop
window
f_STS13 R_8-14 = 56kΩ
1
700
900
1100 µA
1
-6
-9
-12 µA
1
4.4
4.7
V
1
V_5Def-3.5V
V_5Def-3V
V_5Def-2.5V
V
1
500
mV
D4
0
dB
D4 -2
2
dB
D4 32
38
44 dB
D4 80
dB
D4 80
dB
1
0.5
V
1
0
0.1 V
1
±25 kHz
23 Search tuning stop
offset
f_SToffs R_8-14 = 56kΩ; THD = min 1
±10 kHz
24 Search tuning stop
threshold FM
V_iST1
V_iST1
V₁₂=open
V₁₂=2.4V
1
50
100
200
1
0.65
1.3
2.6
*) Integrator currents are measured between the output pin (- Pole of the measurement equipment)
and a voltage source V_m (+ Pole)
µV_rms
mV_rms
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HL DOK
V66047-S1665-B100-G1
5.10.98