AN7208SA

AN7208SA PANASONIC | Alldatasheet

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Technical content

TV/FM front-end IC for 1.5 V headphone stereo n Overview The AN7208SA is a TV/ FM front-end IC developed for use in the headphone stereo. It incorporates two systems of FM and VHF band front-end. A pre-amp. be- tween IF amp. is not necessary by combination with the AN7233SH. n Features

• Built-in two system of FM and VHF band front-end
• Pre-amp. between IF amp. is not necessary (combina- tion with the AN7233SH)
• Built-in standby /IF gain control/local oscillator buffer circuits n Applications
• 1.5 V headphone stereo (VCC 1.0 V to 2.0 V) n Block Diagram SSOP020-P-0225A Unit : mm 6.5–0.3 11 0 20 11 4.3–0.3 6.3–0.3 0.65(0.33) Seating plane Seating plane 0.25–0.10 0.1–0.1 1.5–0.2 0.65–0.100.65–0.10 (0.50) 0.15 +0.10- 0.05 FM RF TV RF TV mix. 1st IF amp. 2nd IF amp. FM mix. FM OSC TV OSC PowerOSC buffer

AN7208SA ICs for FM/AM Tuner Pin No. Description

1 FM RF input

2 TV RF input

3 GND 1

4N . C .

5 IF out 1

6 Mode SW

7 IF in

8 IF gain control

9 IF out 2

10 GND 2

Pin No. Description

11 V CC2

12 STDBY

13 TV OSC 1

14 TV OSC 2

15 OSC buff.

16 FM OSC 1

17 FM OSC 2

18 TV RF

19 FM RF

20 V CC1

n Absolute Maximum Ratings Parameter Symbol Rating Unit Supply voltage V CC 2.5 V Supply current I CC 12 mA Power dissipation P D 30 mW Operating ambient temperature *1 T opr -20 to +75 °C Storage temperature *1 Tstg -55 to +125 °C Note) *1 : All items are at Ta = 25°C, except for the operating ambient temperature and storage temperature. n Recommended Operating Range Parameter Symbol Range Unit Supply voltage V CC 1.0 to 2.0 V Parameter Symbol Conditions Min Typ Max Unit TV fIN = 221.75 MHz Conversion gain *1 G CONV(TV) fOUT = 10.6 MHz 30 38 46 dB Oscillation voltage V OSC(TV) V CC = 0.95 V 15 27 ¾ mV[rms] S/N *2 S/N(TV) Input level = 60 dBm 41 44 ¾ dB 1 kHz 30% Mod. Quiescent current I TOT(TV) ɹɹɹɹɹɹ¾¾ 8.8 12 mA Oscillation buffer output V BUF(TV) V CC = 0.95 V 39 62 ¾ mV[rms] n Electrical Characteristics at VCC = 1.2 V, Ta = 25°C Note) Tuning is taken the peak point at 10.6 MHz output level ( VIN = 30 dBm, non-modulation) *1 : Conversion gain = 20 Log( DV (mV) ‚ 31.6) DV is the output difference at VIN = 30 dBm and at VIN = 36 dBm *2 : Measurement is done at the detection output of the AN7233 Measure the ratio of output at fDIV = 22.5 kHz to that at fDIV = 0 Hz (modulation freq. 1 kHz)

ICs for FM/AM Tuner AN7208SA Pin No. Equivalent circuit Description Input resistance or pin voltage 1 FM RF input Approx. V CC - 0.7 V RF signal input in FM band (Common base type) 2 TV RF input Approx. V CC - 0.7 V RF signal input in TV band (Common base type) n Terminal Equivalent Circuits Parameter Symbol Conditions Min Typ Max Unit TV fIN = 221.75 MHz (continued) Burst noise *3 V NO(TV) Input level = 60 dBm- 1.8 ¾ 1.8 mV[p-0] Non-modulation FM fIN = 107.88 MHz Conversion gain *1 G CONV(FM) fOUT = 10.6 MHz 30 38 46 dB Oscillation voltage V OSC(FM) V CC = 0.95 V 40 63 ¾ mV[rms] S/N *2 S/N(FM) Input level = 60 dBm 48 51 ¾ dB 1 kHz 30% mod. Quiescent current I TOT(FM) ¾¾ 7.7 10 mA Oscillation buffer output V BUF(FM) V CC = 0.95 V 66 132 ¾ mV[rms] Burst noise *3 V NO(FM) Input level = 60 dBm- 1.8 ¾ 1.8 mV[p-0] Non-modulation n Electrical Characteristics at VCC = 1.2 V, Ta = 25°C (continued) Note) Tuning is taken the peak point at 10.6 MHz output level ( VIN = 30 dBm, non-modulation) *1 : Conversion gain = 20 Log( DV (mV) ‚ 31.6) DV is the output difference at VIN = 30 dBm and at VIN = 36 dBm *2 : Measurement is done at the detection output of the AN7233 Measure the ratio of output at fDIV = 22.5 kHz to that at fDIV = 0 Hz (modulation freq. 1 kHz) *3 : Measurement is done at the detection output of the AN7233 Measures a peak voltage of the measurement time = within 500 ms (OK to 10 times) 19 To mix. 18 To mix.

AN7208SA ICs for FM/AM Tuner n Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit Description Input resistance or pin voltage 3 ¾ GND 1 ¾ GND pin (RF, mix. block) 4 ¾ N.C. ¾ 5 IF out 1 Approx. 330 W Approx. VCC - 0.7 V Outputs IF signal of TV/FM

6 Mode SW ¾

V CC : TV mode Open/GND : FM mode 7 IF in Approx. 5 k W IF amp. block input V CC

ICs for FM/AM Tuner AN7208SA Pin No. Equivalent circuit Description Input resistance or pin voltage 8 IF gain control Approx. 700 W Approx. 0.7 V IF amp. block gain can be decreased by inserting a resistance to GND. 9 IF out 2 Approx. 330 W Approx. VCC - 0.7 V IF amp. block output 10 ¾ GND ¾ GND pin (IF, OSC block) 11 ¾ V CC2 ¾ Power supply pin (IF, OSC block)

12 STDBY ¾

V CC /open : IC off GND : IC operates n Terminal Equivalent Circuits (continued)

AN7208SA ICs for FM/AM Tuner Pin No. Equivalent circuit Description Input resistance or pin voltage 13 TV OSC 1 Approx. 10 k W Approx. VCC Connects a local oscillator coil of TV band 14 TV OSC 2 Approx. 10 k W Approx. VCC Connects a local oscillator coil of TV band 15 OSC buff. Approx. 150 W Approx. VCC - 0.2 V Oscillator buffer output pin 16 FM OSC 1 Approx. 10 k W Approx. VCC Connects a local oscillator coil of FM band n Terminal Equivalent Circuits (continued) 1413 V CC 1413 V CC 1716 V CC

ICs for FM/AM Tuner AN7208SA Pin No. Equivalent circuit Description Input resistance or pin voltage 17 FM OSC 2 Approx. 10 k W Approx. VCC Connects a local oscillator coil of FM band

18 TV RF ¾

Connects an RF tuning coil of TV band

19 FM RF ¾

Connects an RF tuning coil of FM band 20 ¾ V CC1 ¾ Power supply pin (RF, mix.block) n Terminal Equivalent Circuits (continued) 19 To mix. 1716 V CC 18 To mix.

AN7208SA ICs for FM/AM Tuner n Application Circuit Example

6 RCRBTC002-D

V CC2 (1.5 V) Out V CC1 (1.2 V/0.98 V) AN7233SH 0.047 mF 0.01 mF 100 mF 22 mF 0.047 mF 0.022 mF 0.022 mF 100 mF 100 mF

15 V 1 mF

5.1 kW 51 kW 330 W CF2 S/N Measurement

220 WX1

0.1 mF 0.1 mF 1 mF 10 kW 10 kW 1 kW 15 kW ET AM D MPX in R-ch. L-ch. Band PLL 1 PLL 2 VCO LPF 1 LPF 2 AM OSC Det. out AM AF in IF req. IF out V CC SD ST. Mute FMIF in AMIF in AM AGC V CC AM mix. AM in Quad GND 50 W 50 W 470 kW 470 kW 470 kW 10 W 100 W 100 W 4.7 kW 4.7 kW 100 W 1 000 pF 1 000 pF 1 000 pF 1 000 pF 3 pF 0.001 pF 0.001 mF 1 000 pF 1 000 pF 1 000 pF 0.022 pF 5 pF 56 pF 680 pF 56 pF V OSC(TV) V OSC(FM) 2SC3935 2SC3935 2SC3935 470 kW 470 kW 4.7 kW 470 kW 470 kW 470kW 56 kW 50 W 50 W 50 W 390 pF 390 pF 20 pF 47 pF 470 kW 1 kW 10 W

10 W 470 kW

D10.001 mF 0.001 mF 0.001 mF 0.01 mF 0.001 mF33 mF V FTU AN7208SA V CC2 V CC1 STDBY GND 2 IF out IF gain IF in TV/FM IF out N.C. GND1 TV in FM in TV OSC FM OSC OSC buff. TV RF FM RF CF1 TV FM

50 WV BUF

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