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TPS9104 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS9104 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 34 page TPS9104 CELLULAR SUBSCRIBER TERMINAL POWER SUPPLY/AUDIO SYSTEM SLVS133A – AUGUST 1996 – REVISED APRIL 1998 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION GND 1, 15, 25, 36 Ground. GND terminals should be externally connected to ground to ensure proper functionality. VCC 2, 31, 40 Supply voltage input. VCC terminals are not connected internally and must be externally connected to ensure proper functionality. PL 3 I Program L. PL provides voltage programming input for regulator L. RNGR_OUT+ 4 O Ringer amplifier noninverting output RNGR_OUT– 5 O Ringer amplifier inverting output RNGR_IN 6 I Ringer amplifier input RNGR_EN 7 I Ringer amplifier enable input; logic low enables the amplifier RESET 8 O Microprocessor reset output NC 9, 17, 20, 30 41, 44 No connection AREF 10 Analog reference. A 0.1- µF capacitor must be connected from AREF to ground. No other connections are allowed. VCP 11 Charge pump driver supply voltage GND_CP 12 Charge pump driver ground CP 13 O Charge pump driver output EN_CP 14 I Charge pump driver enable input. Logic low on EN_CP turns on the charge pump. ON_REM 16 I Remote on; logic high enables the part. MIC_OUT 18 O Microphone amplifier output MIC_IN– 19 I Microphone amplifier inverting input MIC_IN+ 21 I Microphone amplifier noninverting input REF 22 O 1.185-V reference output. Decouple with 0.01- µF to 0.1-µF capacitor to ground. VA 23 O Regulator A output voltage CA 24 Regulator A filter capacitor connection EN_A 26 I Regulator A enable input; logic low turns on the regulator. MIC_EN 27 I Microphone amplifier enable input; logic low turns on the microphone amplifier. PA 28 I Program A. PA provides programming input for Regulator A. EN 29 I/O Enable signal input/output; logic low enables the part. ON 32 O On-signal output OFF 33 I Off signal PB 34 I Program B. PB provides programming input for Regulator B. EN_B 35 I Regulator B enable input; logic low turns on the regulator. CB 37 Regulator B filter capacitor connection VB 38 O Regulator B output voltage SPKR_OUT+ 39 O Speaker amplifier noninverting output SPKR_OUT– 42 O Speaker amplifier inverting output SPKR_IN 43 I Speaker amplifier input VL 45 O Regulator L output voltage CL 46 Regulator L filter capacitor connection SPKR_EN 47 I Speaker amplifier enable input; logic low enables the amplifier. ON 48 I On signal; logic low enables the part. |
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