Product Information

HT9170D-18SOPLF

HT9170D-18SOPLF electronic component of Holtek

Datasheet
IC, DTMF RECEIVER, SMD, SOP18
Manufacturer: Holtek
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

1: USD 2.8102 ea
Line Total: USD 2.81

0 - Global Stock
MOQ: 1  Multiples: 1
Pack Size: 1

 More Buying Options & Price Grid(s)

Availability Price Quantity
0 - WHS 1


Ships to you between Fri. 24 May to Thu. 30 May

MOQ : 1
Multiples : 1
1 : USD 2.6904
10 : USD 2.2447
50 : USD 1.8721
100 : USD 1.6592
250 : USD 1.5349
500 : USD 1.3906

Read More Specifications

     
Manufacturer
Product Category
Brand
Ic Function
Supply Voltage Min
Supply Voltage Max
Ic Package Type
No. Of Pins
Operating Temperature Min
Operating Temperature Max
Rohs Phthalates Compliant
Svhc
Brief Features
No. Of I/O S
Operating Temperature Range
Supply Current
Supply Voltage Range
Termination Type
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Additional Infomation About Product

HT9170B/HT9170D DTMFReceiver Features Operating voltage: 2.5V~5.5V Tristate data output for MCU interface Minimal external components 3.58MHz crystal or ceramic resonator No external filter is required 1633Hz can be inhibited by the INH pin Low standby current (on power down mode) HT9170B: 18-pin DIP package HT9170D: 18-pin SOP package Excellent performance General Description The HT9170B/D are Dual Tone Multi Frequency (DTMF) Highly accurate switched capacitor filters are imple- receivers integrated with digital decoder and bandsplit mented to divide tone signals into low and high group filter functions as well as power-down mode and inhibit signals. A built-in dial tone rejection circuit is provided to mode operations. Such devices use digital counting eliminate the need for pre-filtering. techniques to detect and decode all the 16 DTMF tone pairs into a 4-bit code output. Selection Table Function Operating OSC Tristate Power 1633Hz DV DVB Package Voltage Frequency Data Output Down Inhibit Part No. HT9170B 2.5V~5.5V 3.58MHz 18 DIP HT9170D 2.5V~5.5V 3.58MHz 18 SOP Block Diagram 4 * ( * - / . / 0 1 0 . & 0 * - & * 2 % * ) + , * * * ( - % * & 3 ( . Rev. 1.11 1 February 23, 2009HT9170B/HT9170D Pin Assignment * * * * ( 5 / 0 1 0 ( / 0 1 0 5 & . & 0 & 6 6 . & 0 / . * / . * 7 7 3 ( * 3 ( 7 7 * 4 * ( 6 * 4 * ( * 6 * 5 5 * * 2 * 2 & & . & & 8 2 8 2 . Pin Description Internal Pin Name I/O Description Connection Operational VP I Operational amplifier non-inverting input Amplifier VN I Operational amplifier inverting input GS O Operational amplifier output terminal VREEF O VREF Reference voltage output, normally V /2 DD X1 I The system oscillator consists of an inverter, a bias resistor and the necessary load capacitor on chip. oscillator A standard 3.579545MHz crystal connected to X1 and X2 terminals imple- X2 O ments the oscillator function. CMOS IN Active high. This enables the device to go into power down mode and inhibits PWDN I Pull-low the oscillator. This pin input is internally pulled down. CMOS IN Logic high. This inhibits the detection of tones representing characters A, B, C INH I Pull-low and D. This pin input is internally pulled down. VSS Negative power supply, ground CMOS IN OE I D0~D3 output enable, high active Pull-high Receiving data output terminals CMOS OUT D0~D3 O OE= H : Output enable Tristate OE= L : High impedance Data valid output DV O CMOS OUT When the chip receives a valid tone (DTMF) signal, the DV goes high other- wise it remains low. EST O CMOS OUT Early steering output (see Functional Description) Tone acquisition time and release time can be set through connection with ex- RT/GT I/O CMOS IN/OUT ternal resistor and capacitor. VDD Positive power supply, 2.5V~5.5V for normal operation Rev. 1.11 2 February 23, 2009

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