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LC73701M

Features: • Functions as a dialer that is controlled over a serial interface.• The built-in oscillator circuit (fOSC = 4.19 MHz) can use either a crystal oscillator or a ceramic resonator as its oscillator element.• The adoption of a high-precision (±0.04%) DTMF signal frequency ...

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SeekIC No. : 004391929 Detail

LC73701M: Features: • Functions as a dialer that is controlled over a serial interface.• The built-in oscillator circuit (fOSC = 4.19 MHz) can use either a crystal oscillator or a ceramic resonato...

LC73701M Data Sheet

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Part Number:
LC73701M
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Functions as a dialer that is controlled over a serial interface.
• The built-in oscillator circuit (fOSC = 4.19 MHz) can use either a crystal oscillator or a ceramic resonator as its oscillator element.
• The adoption of a high-precision (±0.04%) DTMF signal frequency divider circuit allows a ceramic resonator to be used as the oscillator element.
• The buffer memory can store up to 32 digits of 5-bit data.
• Mode change and pause commands can also be stored as data in the buffer memory.
• Pauses can be inserted automatically on mode changes (auto-pause).
• A pause can be cancelled during that pause.
• The mode change function supports changing from pulse to tone (single direction).
• Generates all 16 DTMF signals.
• The pulse dialer output can be turned on or off arbitrarily.
• The pulse dialer output circuit can be selected to be either an n-channel open drain or a complementary circuit.
• The pulse dialer muting function can be turned on or off arbitrarily.
• A redial function is provided.
• Flash operation is supported. (Data can be receivedduring flash operation.)
• The flash time can be switched to be either 277 or 707 ms.
• The pause time can be switched to be either 2 or 4 seconds.
• Hooking pause operation is supported. (1.2 s or 801 ms)
• The dial pulse rate can be specified to be either 10 pps or 20 pps.


Pinout

Connection Diagram




Specifications

Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VDD max   0.3 to +6.5 V
Maximum input voltage VIN max   0.3 to VDD +0.3 V
Maximum output voltage VOUT max   0.3 to VDD +0.3 V
Allowable power dissipation Pd max Ta<70°C 180 mW
Minimum load resistance RL min Between the DTMF and the VSS pins 1 K
Operating temperature Topr   30 to +70 °C
Storage temperature Tstg   40 to +125 °C



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