TDA9820
TDA9820 is Multistandard/dual channel TV FM intercarrier sound demodulator manufactured by NXP Semiconductors.
FEATURES
- Multistandard application for sound standards M, B/G, I and D/K
- Two alignment-free PLL FM demodulators
- Four-input source selector for one of the two FM demodulators
- Automatic second sound carrier mute
- Mono and dual channel application
- Low power consumption
- Few external ponents required. QUICK REFERENCE DATA SYMBOL VP IP IM Vi(rms) Vo(rms) S+N ------------N α8/7 RR Tamb PARAMETER supply voltage (pin 14) supply current (pin 14) AC peak current (pins 7 and 8) input signal (RMS value) S+N ------------- = 40 d B N in accordance with “CCIR 468-3” f = 50 to 12500 Hz VRR < 200 m V; f = 70 Hz CONDITIONS MIN. 4.5 23
- - 0.4 64 60 16 0 TYP. 5.0 30
- 150 0.5 68 70 20
- GENERAL DESCRIPTION
The TDA9820 is a monolithic, integrated, multistandard TV FM intercarrier sound demodulator for all FM standards. The circuit contains two separate FM demodulators using Phase Locked Loop (PLL) reference frequency generation. The circuit requires a minimum number of external ponents.
MAX. 8.8 37 1.5 250 0.6
- -
- 70
UNIT V m A m A µV V d B d B d B °C output signal (pins 7 and 8; RMS value) ∆fi = ±50 k Hz signal plus noise-to-noise ratio (pins 7 and 8) crosstalk attenuation supply voltage ripple rejection (pins 7 and 8) operating ambient temperature
ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TDA9820 TDA9820T DIP16 SO16 DESCRIPTION plastic dual in-line package; 16 leads (300 mil); long body plastic small outline package; 16 leads; body width 7.5 mm VERSION SOT38-1 SOT162-1
1996 Nov 20
Philips Semiconductors
Product specification
Multistandard/dual channel TV FM intercarrier sound demodulator
BLOCK DIAGRAM
4.5 MHz (M) handbook, full pagewidth
Rs (1)
5.5 MHz (B/G) 3 6.0 MHz (I) 1 16 2 6.5 MHz (D/K) 7-STAGE LIMITER AMPLIFIER 1
9 +
- 8 V AF1
VCO 1 5 CONTROL UNIT 6 S1 S2 standard switch intercarrier
15 4.72 MHz (M) or 5.74 MHz (B/G) or 6.74 MHz (D/K)
7-STAGE LIMITER AMPLIFIER 2
VCO 2
SUPPLY mute 13 14 12 11 optional stereo channel...