CS9370

www.DataSheet.co.kr Semic● The Document is Applied to: CS9370DGP、CS9370DGO General Description CS9370 DTMF Receiver The CS9370 is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high-and low-group filters and dial-tone rejection. Digital counting techniques are employed in the decoder to detect and decode all 16 DTMF tone-pairs into 4-bit code. External component count is minimized by on-chip provision of a differential input amplifier, clock-oscillator and latched 3-state bus interface. Features z z z z z z z VREF 4 INH 5 PWDN 6 OSC1 7 OSC2 8 VSS 9 CS9370 Min. 2.5 Typ. CMOS, 5/3 Volt operation. Excellent performance with minimum board quality. Central office quality. Low power consumption. Power-Down mode Inhibit-mode Package: DIP18, SOP18 Pin Configuration IN+ 1 IN- 2 GS 3 18 VDD 17 St/GT 16 ESt 15 StD 14 Q4 13 Q3 12 Q2 11 Q1 10 TOE Absolute Maximum Ratings Supply Voltage： ........................................-0.3～+6.0V Operating Temperature： ...........................-40～+85℃ Storage Temperature： ............................-65～+150℃ Power Dissipation： ............................................ 35mW DC Electrical Characteristics (Unless otherwise specified: Ta=25℃) Parameter SUPPLY: VDD ICC PO IS INPUTS: VIL VIH IIH/IIL ISO RIN VTST OUTPUT: VOL VOH IOL IOH VREF ROR Description Operating supply voltage Operating supply current Power consumption Standby cur...