TTP103

Preliminary TTP103_________________________________________________________________________________ TTP103 PRODUCT SPECIFICATION GENERAL DESCRIPTION : TTP103 IC IS A KIND OF CMOS TECHNOLOGY PREMITTED TO DESIGN TOGGLE OUTPUT. THE DETAILED FUNCTIONS ARE AS FOLLOW : touch TTP103 : Low touch High touch Low PIN ASSIGNMENT PIN NO. PIN NAME FUNCTION DESCRIPTION I/O 1 CK SYSTEM CLOCK INPUT I 2 FI 60 OR 50 HZ LINE FREQUENCY I 3 VDD POWER INPUT PIN FOR VDD P 4 TI TOUCH INPUT B 5 CI SENSOR CONTROL INPUT B 6 NC 7 VSS POWER INPUT PIN FOR VSS P 8 AT TOGGLE OUTPUT O FEATURES : 1. NO MECHANICALLY SWITCH ELEMENTS. 2. HIGH SENSITIVITY AND STABILITY FOR LONG CONNECTING WIRE AND HEAVY LOADING (800pf) ON SENSE-PLATE FOR HUMAN BODY CAPACITY = 50pf 3. VERY SMALL NUMBER OF PERIPHERAL COMPONENTS REQUIRED OPERATING PARAMETER : 1. OPERATING VOLTAGE(VDD) : 6.8 V 2. OPERATING CURRENT : ≦ 1.0 mA 3. TRIGGER OUTPUT CURRENT (AT PIN) : ≦ -30 mA (Vout=1.0V) 4. INPUT LEAKAGE : ≦ 0.5 uA 5. VOLTAGE INPUT RANGE : (VSS - 0.3V) <-> (VDD + 0.3V) 6. OPERATING TEMPERATURE : 0℃ ～ 80℃ 7. STORAGE TEMPERATURE : -20℃ ～ 120℃ 2014/06/11 page 1 of 6 Ver 1.1 Preliminary TTP103_________________________________________________________________________________ TTP103 BLOCK DIAGRAM CK FI FREQUENCY GENERATOR ZERO CROSSING COUNTER & DECODER TRIGGER BUFFER AT TI TOUCH DETECTOR CI Pin Assignment CK 1 8 AT FI 2 7 VSS VDD 3 6 NC TI 4 5 CI TTP103S 8 SOP STEP REGISTER 2014/06/11 page 2...