TDA7332 Datasheet, PDF (3/6 Pages) STMicroelectronics – RDS FILTER

TDA7332
ELECTRICAL CHARACTERISTICS (V_CC = 5V, Tamb = 25°C; fosc = 4.332MHz; V_IN = 20mVrms unless
otherwise specified)
Symbol
Parameter
SUPPLY SECTION
Test Condition
Min. Typ. Max. Unit
V_CC
I_S
FILTER
Supply Voltage
Supply Current
4.5
5
5.5
V
6
9
14
mA
F_C
Center Frequency
BW
3dB Bandwidth
G
Gain
A
Attenuation
∆Ph Phase non linearity
R_i
Input Impedance
S/N Signal to Noise Ratio
V_i
Input Signal
R_L
Load Impedance
LIMITER
56.5 57 57.5 KHz
2.5
3
3.5 KHz
f = 57KHz
18
20
22
dB
∆f = +4KHz
18
22
dB
f = 38KHz; V_i = 500mVrms
50
80
dB
f = 67KHz; V_i = 250mVrms
35
50
dB
A (see note1)
B (see note1)
C (see note1)
0.5
5
DEG
1
7.5 DEG
2
10 DEG
100 160 200 KΩ
V_i = 3mVrms
30
40
dB
f = 19KHz; T3 < –40dB (see note2)
f = 57KHz (RDS + ARI)
1
Vrms
50 mVrms
Pin 12
100
KΩ
RA
Resistance pin 8-12
V_OL
Comp. Output LOW
V_OH
Comp. Output HIGH
Duty Cycle
OSCILLATOR
I_O = +0.5mA
IO = –0.5mA
V_i = 1mVrms
15
21
28
KΩ
1
V
4
V
50
%
F_OSC Oscillator Frequency
Output Amplitude
V_CLL Clock Input Level LOW
V_OLH Clock Input Level HIGH
CRYSTAL TYPE = EURO QUARTZ
F_SEL = Open
F_SEL = Closed to Ground
4.332
8.664
5
1
4
MHz
MHz
V_PP
V
V
Note (1):
The phase non linearity is defined as: ∆Ph = | -2 φf2 + φf1 + φf3 |
where φfx is the input-output phase difference at the frequency fx (x = 1,2,3)
Measure
A
B
C
f1 (KHz)
56.5
56
55.5
f2 (KHz)
57
57
57
f3 (KHz)
57.5
58
58.5
∆Ph max
<5°
<7.5°
<10°
Note (2): The 3th harmonic (57KHz) at the output (pin12) must be less than -40dB in respect to the input signal plus gain.
3/6