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SN761672A Datasheet(PDF) 3 Page - Texas Instruments |
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SN761672A Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 18 page  SN761672A TV/VCR TUNER IC SLLS437 – JANUARY 2001 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION ADC 20 I ADC input (see Figure 7) AS 19 I Address selection input (see Figure 7) BS1 BS2 BS3 BS4 22 23 24 25 O Band switch1 output (NPN emitter follower) ( see Figure 8) CP 14 O Charge pump output (see Figure 5) IF GND 10 IF ground (see Figure 4) IF OUT1 11 O IF output (see Figure 4) IF OUT2 12 O IF output (see Figure 4) MIX OUT1 MIX OUT2 26 27 O Mixer outputs (see Figure 9) OSC GND 3 OSC ground RF GND 28 RF ground SCL 17 I Serial clock input (see Figure 7) SDA 18 I/O Serial data input/output (see Figure 7) UHF OSC B1 6 I UHF oscillator input, base 1 (see Figure 3) UHF OSC B2 9 I UHF oscillator input, base 2 (see Figure 3) UHF OSC C1 7 O UHF oscillator output, collector 1 (see Figure 3) UHF OSC C2 8 O UHF oscillator output, collector 2 (see Figure 3) UHF RF IN1 UHF RF IN2 31 32 I UHF RF inputs (see Figure 11) VCC 13 Supply voltage for mixer/oscillator/PLL: 5 V VHF RF IN1 VHF RF IN2 29 30 I VHF RF inputs (see Figure 10) VHI OSC B 4 I VHF hi oscillator input base (see Figure 2) VHI OSC C 5 O VHF hi oscillator output collector (see Figure 2) VLO OSC B 1 I VHF low oscillator input base (see Figure 1) VLO OSC C 2 O VHF low oscillator output collector (see Figure 1) VTU 15 O Tuning voltage amplifier output (see Figure 5) XTAL 16 I 4-MHz crystal oscillator input (see Figure 6) |
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