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SN761681DBTRG4 Datasheet(PDF) 3 Page - Texas Instruments |
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SN761681DBTRG4 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 20 page  www.ti.com Pin Assignments 19 S0159-01 150 kW 50 kW 20 S0133-03 SN761681 TV TUNER IC SLES165 – DECEMBER 2005 Pin Description TERMINAL DESCRIPTION SCHEMATIC NAME NO. ADC 20 ADC input Figure 1 AS 19 Address selection input Figure 2 BS1 22 Band switch1 output (NPN emitter follower) Figure 3 BS2 23 Band switch2 output (NPN emitter follower) Figure 3 BS3 21 Band switch3 output (NPN emitter follower) Figure 3 BS4 24 Band switch4 output (NPN emitter follower) Figure 3 CP 14 Charge pump output Figure 4 IF GND 10 IF ground IF OUT1 12 IF output Figure 5 IF OUT2 13 IF output Figure 5 MIX OUT1 25 Mixer output Figure 6 MIX OUT2 26 Mixer output Figure 6 OSC GND 3 Oscillator ground RF GND 27 RF ground SCL 17 Serial clock input Figure 7 SDA 18 Serial data input/output Figure 8 UHF OSC B1 6 UHF oscillator base1 Figure 9 UHF OSC B2 9 UHF oscillator base2 Figure 9 UHF OSC C1 7 UHF oscillator collector1 Figure 9 UHF OSC C2 8 UHF oscillator collector2 Figure 9 UHF RF IN1 29 UHF RF input Figure 10 UHF RF IN2 30 UHF RF input Figure 10 VCC 11 Supply voltage for mixer/oscillator/PLL: 5-V VHF RF IN 28 VHF RF input Figure 11 VHI OSC B 2 VHF HIGH oscillator base Figure 12 VHI OSC C 1 VHF HIGH oscillator collector Figure 12 VLO OSC B 5 VHF LOW oscillator base Figure 13 VLO OSC C 4 VHF LOW oscillator collector Figure 13 VTU 15 Tuning voltage amplifier output Figure 14 XTAL 16 4-MHz crystal oscillator input Figure 15 Figure 1. Figure 2. 3 |
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