ICs for TV AN5071 TV Tuner Band-Switch IC (31V-Voltage Regulator Built-in) ■ Overview Unit : mm The AN5071 is the integrated circuit incorporating TV tuner band-switch circuits and 31V-power-supply circuit. 2.4±0.25 3.3±0.25 9 • Tuner band switch circuit with 31V-voltage regulator • Usable for every tuner by suitable output combination 8 0.5±0.1 7 23.3±0.3 6 1.5±0.25 ■ Features 2.54 6.0±0.3 5 2 1 0.3 +– 0.1 0.05 3.0±0.3 9-Pin SIL Plastic Package ■ Pin Descriptions Pin No. ■ Block Diagram Output Circuit (1) Control Circuit Output Circuit (2) 2 3 4 Input 3 Input (1) 4 Input (2) Output (2) 5 GND 6 7 31.5V supply voltage 8 Output (4) 9 VCC Output (3) Output Circuit (4) Voltage Regulator 5 GND to Tuner Output (1) Output Circuit (3) Input Circuit 1 Pin name 1 2 6 7 8 + – 9 VCC +B to Tuner 30˚ 1.5±0.25 3 1.4±0.3 4 ICs for TV AN5071 ■ Absolute Maximum Ratings (Ta=25˚C) Symbol Rating Supply voltage Parameter VCC +18 Unit V Supply current I6 +14 mA mW Power dissipation PD 620 Operating ambient temperature Topr Storage temperature Tstg – 20 to + 70 – 55 to +150 ˚C ˚C ■ Electrical Characteristics (Ta = 25˚C) Parameter Symbol Condition min typ max Unit Input-threshold voltage Vt VCC=12V 1.5 2.5 V Input-threshold current It VCC=12V 100 500 µA Output-saturation voltage VCE (sat) VCC=12V, IO= – 60mA 0.3 0.8 V Pin8 output-saturation voltage VCE (sat) VCC=12V, I8=20mA 0.2 0.5 V V6-5 VCC=12V, I6=10mA 29.5 31.5 33.5 V Regulated voltage ambient temperature dependency V6-5/Ta Ta= –20 to + 60˚C –1.0 0 1.0 mV/˚C Regulated voltage time drift ∆V6-5 Reference is the voltage at 5 sec. after SW. ON ±50 mV Voltage regulator ■ Input/Output Related (Logic Table) Pin3 Pin4 Pin1 Pin2 Pin7 Pin8 L L VCC open open L Remarks Tuning Status UHF H L open VCC open open VHF-L L H open open VCC L VHF-H H H open open open open — ( I6 –V6-5 12 ) 10 Supply Current I6 (mA) Output Input 8 6 4 2 0 0 10 20 30 40 ■ Application Circuit AN5071 1 2 3 4 5 AN5071 6 7 8 1 9 3 4 5 50V 1µF 31.5V 12V 6 7 8 9 BU 8.2kΩ 2W +B (115V) BVL 43kΩ BS 12V BM BVH 220kΩ BT Input Input + – 50V 1µF + – 50V 1µF + – 50V 1µF 0.022µF + – BV 0.022µF 50V 1µF Input + – Input BM BT 2 Tuner Tuner BU 50 Regulated voltage V6-5 (V) R3 +B 8.2kΩ (115V) 2W