STV8225 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STV8225' PDF : 6 Pages View PDF
STV8225
ELECTRICAL CHARACTERISTICS (continued) (VCC = 9V, VIN = 10mVRMS, fSC = 32.4MHz, fM = 1kHz,
m = 54% modulation depth, Audio BW = 40Hz to 15kHz, Tamb = 25oC, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
AM DEMODULATOR
AF Output Voltage (Pins 7-9)
AF Bandwidth (Pins 7-9)
Lower Limit
Upper Limit
Harmonic Distorsion (Pins 7-9)
S/N (Pins 7-9)
Level switch (Pin 4) open
Level switch (Pin 4) connected to GND
-3dB versus nominal signal
THD + Noise
Weighted according to CCIR 468-4
200 250 300 mVRMS
400 500 600 mVRMS
40 Hz
50
kHz
0.7 1.8 %
55
dB
MUTE
Threshold Level (Pin 6)
Attenuation (Pins 7-9)
Mute mode if voltage below threshold
0.2 0.3 0.4
V
Level switch (Pin 4) connected to GND 80 96
dB
TV - AM mode
AUDIO SWITCHES
Switching Voltage (Pin 10)
Operation mode
TV
TV
AV
AV
FM
AM
AM
FM
0V
Viev1
Viev2
Viev3
V10
VCC
View1
View2
View3
Level 1 (Pin 10)
Level 2 (Pin 10)
Level 3 (Pin 10)
Input Current (Pin 10)
Input Dynamic Range (Pins 5-11)
Input Resistance (Pins 5-11)
Switch Gain
Crosstalk
Output Resistance (Pins 7-9)
Output Current Source (Pins 7-9)
Switch Distorsion
Output Noise
DC Plop at AF Output Pin
For voltage below this level
TV-FM mode : Pin 7 connected to A
Pin 9 connected to C
For voltage below this level
TV-AM mode : Pin 7 connected to A
Pin 9 connected to A
For voltage below this level
AV-AM mode : Pin 7 connected to B
Pin 9 connected to A
For voltage above this level
AV-FM mode : Pin 7 connected to B
Pin 9 connected to C
Source current
VIN = 2VRMS, f = 1kHz
Pin 7 vs Pin 11 and Pin 9 vs Pin 5
f = 1kHz
VIN = 2VRMS, f = 1kHz, THD + Noise,
Pin 7 vs Pin 11 and Pin 9 vs Pin 5
Unweighted
1.8 2.3 2.6
V
4.1 4.6 4.9
V
6.4 6.8 7.2
V
0.3 2
2
35 50
-0.6 -0.1 0.4
µA
VRMS
kΩ
dB
70 85
dB
70 100 130 Ω
1
mA
0.1 0.5 %
7 20 µVp
10 50 mV
3/6
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