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TDA7330B Datasheet(PDF) 3 Page - STMicroelectronics

Part No. TDA7330B
Description  SINGLE CHIP RDS DEMODULATOR FILTER
Download  9 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7330B Datasheet(HTML) 3 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (VCC = 5V, Tamb = 25
°C; Rg = 600Ω; fosc = 4.332MHz;
VIN = 20mVrms unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
SUPPLY
VCC
Supply Voltage
4.5
5
5.5
V
IS
Supply Current
9
mA
RPOR
POR Pull Down Resistor
pin 20
40
K
PORON
POR Threshold
2.5
V
FILTER(measured an pin 4 FILOUT)
FC
Center Frequency
56.5
57
57.5
KHz
BW
3dB Bandwidth
2.5
3
3.5
KHz
G
Gain
f = 57KHz
18
20
22
dB
A
Attenuation
∆f = +4KHz
f = 38KHz; Vi = 500mVrms
f = 67KHz; Vi = 250mVrms
18
50
35
22
80
50
dB
dB
dB
∆Ph
Phase non linearity
A (see note1)
B (see note1)
C (see note1)
0.5
1
2
5
7.5
10
DEG
DEG
DEG
Ri
Input Impedance
100
160
200
K
S/N
Signal to Noise Ratio
Vi = 3mVrms
30
40
dB
Vi
Maximum Input Signal Capability
f = 19KHz; T3 < –40dB (see note2)
f = 57KHz (RDS + ARI)
1
50
Vrms
mVrms
RL
Load Impedance
Pin 4
100
K
CROSS DETECTOR
RA
Resistance pin 3-4
15
21
28
K
OSCILLATOR
FOSC
Oscillator Frequency
FSEL = Open (*)
FSEL = Closed to VCC (**)
4.332
8.664
MHz
MHz
VCLL
Clock Input level LOW (pin 10)
1
V
VCLH
Clock Input Level HIGH (pin 10)
4
V
Output Amplitude (pin 9)
4.5
VPP
(*) FSEL pin has an internal 40K
Ω pull down resistor A 4.332MHz QUARTZ must be used (**) A 8.664MHz QUARTZ must be used.
DEMODULATOR
∆fO
Max Oscillator Deviation
FSEL = Open
+ 1.2
KHz
SRDS
RDS Detection Sensitivity
1
mVrms
SARI
ARI Detection Sensitivity
3
mVrms
Tlock
RDS Lockup Time
100
ms
VOH
Output HIGH Voltage
IL = 0.5mA; pins 12, 13, 14, 15
4
V
VOL
Output LOW Voltage
IL = 0.5mA; pins 12, 13, 14, 15
1
V
fRDS
Data Rate for RDS
RDCL pin
1187.5
Hz
tD
RDDA Transition versus RDCL
(see figure 2)
4.3
µsec
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)
TDA7330B
3/9


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