TDA7332 Datasheet by STMicroelectronics

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TDA7332
September 2004
1FEATURES
HIGH PERFORMANCE, STABLE 57KHz
FILTER
HIGH SELECTIVITY
FLAT GROUP DELAY
HIGH PERFORMANCE LIMITER
VERY FEW EXTERNAL COMPONENTS
4.332MHz CLOCK OSCILLATOR (8.664MHz
OPTIONAL)
2DESCRIPTION
The TDA7332 is an RDS filter, realized in switched
capacitor technique.
The 4 biquad stage architecture is working with
4.332MHz clock.
Optionally a 8.664MHz xtal can be used.
The filter has a center frequency of 57KHz and a
bandwidth of 3KHz. Input 2nd order antialiasing fil-
ter and output smoothing filter are provided.
RDS FILTER
Block Diagram
Rev. 2
Fi
gure
1
.
P
ac
k
age
Table 1. Order Codes
Part Number Package
TDA7332D SO14
TDA7332D013TR Tape & Reel
TDA7332DIE1 Chip on wafer
SO14
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oscom 1: 1 V14 ".5. E 2 13 END: 3 12 N.l:. E l 11 HPXINE 5 18 N.C. I: 6 s UREF E 7 8 :l DSCIN :l UCC :I FILOUT :l FSEL J CDHPDUT :I N.C. :l *CDHP Ml 7007332~ I! El El mm VII! U E! ulcnur I a nun ,; T097332DI E 1 utflNP E! a non El El El convuuf FIEI. Hull" 1.— 2..- _.| u: runn- .-
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Figure 2. Absolute Maximum Ratings
Table 2. Thermal Data
Figure 3. Pin Connection (Top view)
Figure 4. Bonding Pad Locations (Top view)
Table 3. Electrical Characteristcs (V
CC
= 5V, T
amb
= 25°C; f
osc
= 4.332MHz; V
IN
= 20mV
rms
unless
Symbol Parameter Value Unit
V
S
Supply Voltage 7 V
T
op
Operating Temperature Range -40 to 85 °C
T
stg
Storage Temperature -40 to 150 °C
Symbol Parameter Value Unit
R
th j-case
Thermal Resistance Junction-case 200 °C
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TDA7332
otherwise specified)
CRYSTAL TYPE = EURO QUARTZ
Note (1):
The phase non linearity is defined as: DPh = | -2 ff2 + ff1 + ff3 |
where ffx is the input-output phase difference at the frequency fx (x = 1,2,3)
Table 4.
Note (2): The 3th harmonic (57KHz) at the output (pin12) must be less than -40dB in respect to the input signal plus gain.
Symbol Parameter Test Condition Min. Typ. Max. Unit
SUPPLY SECTION
V
CC
Supply Voltage 4.5 5 5.5 V
I
S
Supply Current 6 9 14 mA
FILTER
FCCenter 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 18 22 dB
f = 38KHz; V
i
= 500mVrms 50 80 dB
f = 67KHz; V
i
= 250mVrms 35 50 dB
Ph Phase non linearity A (see note1) 0.5 5 DEG
B (see note1) 1 7.5 DEG
C (see note1) 2 10 DEG
R
i
Input Impedance 100 160 200 K
S/N Signal to Noise Ratio Vi = 3mVrms 30 40 dB
ViInput Signal f = 19KHz; T3 < –40dB (see note2) 1 Vrms
f = 57KHz (RDS + ARI) 50 mVrms
RLLoad Impedance Pin 12 100 K
LIMITER
RA Resistance pin 8-12 15 21 28 K
V
OL
Comp. Output LOW I
O
= +0.5mA 1V
V
OH
Comp. Output HIGH I
O
= –0.5mA 4 V
Duty Cycle Vi = 1mVrms 50 %
OSCILLATOR
F
OSC
Oscillator Frequency F
SEL
= Open 4.332 MHz
F
SEL
= Closed to Ground 8.664 MHz
Output Amplitude 4.5 V
PP
V
CLL
Clock Input Level LOW 1 V
V
OLH
Clock Input Level HIGH 4 V
Measure f1 (KHz) f2 (KHz) f3 (KHz) Ph max
A 56.5 57 57.5 <5°
B565758<7.5°
C 55.5 57 58.5 <10°
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Figure 5. SO14 Mechanical Data & Package Dimensions
OUTLINE AND
MECHANICAL DATA
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 1.35 1.75 0.053 0.069
A1 0.10 0.30 0.004 0.012
A2 1.10 1.65 0.043 0.065
B 0.33 0.51 0.013 0.020
C 0.19 0.25 0.007 0.01
D (1) 8.55 8.75 0.337 0.344
E 3.80 4.0 0.150 0.157
e 1.27 0.050
H 5.8 6.20 0.228 0.244
h 0.25 0.50 0.01 0.02
L 0.40 1.27 0.016 0.050
k (min.), 8˚ (max.)
ddd 0.10 0.004
(1) “D” dimension does not include mold flash, protusions or gate
burrs. Mold flash, protusions or gate burrs shall not exceed
0.15mm per side.
SO14
0016019 D
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TDA7332
Table 5. Revision History
Date Revision Description of Changes
September 2003 1 First Issue
September 2004 2 Deleted DIP 14 package and part number TDA7332. Aligned the
graphic style to be compliant with the new “Corporate Technical
Pubblications Design Guide”
Obsolete Product(s) - Obsolete Product(s)
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of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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TDA7332

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