KS58015 Datasheet | Samsung Semiconductor

FEATURES - Direct interface with microprocessor - Generates 16 standard tones - Uses inexpensive TV crystal or ceramic resonator (3.579545MHz) - Very low total harmonic distortion - Low power standby mode - Binary data inputs with latches - Wide Operating Voltage : 2.5 ~ 8.0V ORDERING INFORMATION Device KS58015N KS58015D Package 14-DIP-300 14-SOP-225B Operating Temperature - 30°C ~ + 70°C BLOCK DIAGRAM VDD MUTE OSC IN OSC OSC OUT MUTE LOGIC TEN ST GS D0 D1 D2 D3 DATA LATCH & DECODER 4 D/A CONVER TER & MIXING CONTROL CIRCUIT ROW & COLUMN TONE COUNTER TONE OUT VS S Fig.1 DTMF DIALER FOR BINARY DATA-IN PIN CONFIGURATION VDD TEN ST GS VSS OSC IN OSC OUT 1 2 3 4 5 6 7 KS58015 14 13 12 11 10 9 8 TONE OUT NC D3 D2 D1 D0 MUTE Fig. 2 PIN DESCRIPTION Pin No 1 Symbol VDD TEN Positive supply input Tone enable input. An internal pull-up resistor is in a chip. When this pin connects to 2 logic ‘ low’ , the oscillator is inhibited and the tone generators and output transistor are turned off. A low to high transition on this pin latches in data from D0 ~ D3, and tone generation continues until this pin is connected ‘ low’again. Single tone enable. An internal pull-up resistor is in a chip. When this pin connects 3 ST to logic ‘ low’ , the device is in a single tone mode. For normal operation, connects this pin to VDD or open-circuit. Group selection input. This pin is used to select the high group or low group fre4 GS quency, when the device is in single tone mode. An internal pull-up resistor is in a chip. When this pin connects to VDD or open, the high group will be generated, and when connects to VSS, the low group will be generated. 5 6 7 8 9, 10, 11, 12 13 14 VSS OSC IN OSC OUT MUTE D0, D1, D2, D3 N.C Tone out Negative supply input Oscillator input Oscillator output N-channel open drain output. This pin is a logic high state, when the tone enable pin is a high state. This pin goes a logic low state, when the tone enable pin is a low state. DATA-INPUTS....