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PCD3330-1

Features: 1.1 Pulse/DTMF dialling` Pulse, DTMF and 'mixed mode' dialling` Mixed mode dialling: start with pulse dial, end with DTMF dial (e.g. for control of DTMF user equipment via a pulse network)` Number of digits per call is infinite (FIFO register)` Flash or register recall` Connect a/b to ea...

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SeekIC No. : 004456348 Detail

PCD3330-1: Features: 1.1 Pulse/DTMF dialling` Pulse, DTMF and 'mixed mode' dialling` Mixed mode dialling: start with pulse dial, end with DTMF dial (e.g. for control of DTMF user equipment via a pulse network)...

PCD3330-1 Data Sheet

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Part Number:
PCD3330-1
Supply Ability:
5000

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  • 1~5000
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  • Negotiable
  • Processing time
  • 15 Days
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Product Details

Description



Features:

1.1 Pulse/DTMF dialling
` Pulse, DTMF and 'mixed mode' dialling
` Mixed mode dialling: start with pulse dial, end with DTMF dial (e.g. for control of DTMF user equipment via a pulse network)
` Number of digits per call is infinite (FIFO register)
` Flash or register recall
` Connect a/b to earth function
` Mute functions
` Disconnect function
` Supports 16 dial key: 0 to 9 and *, #, A, B, C and D
` Supports up to 6 ´ 6 keyboard and various function keys including:
FLASH: calibrated line-break pulse
HOOK: toggle on-hook/off-hook or loudspeaker on/off
MUTE: activate/deactivate mute output
TONE: change to DTMF dialling (mixed mode)
DISconnect: return to on-hook state for calibrated time
` On-hook dialling control
` Country specifications which can be stored in EEPROM are:
* and # to be transmitted/not transmitted when switching over to DTMF dialling mode
mark-to-space ratio (3 : 2 or 2 : 1)
6 tone time selections (60/90, 70/70, 80/80, 100/100, 100/140 or 140/140 ms)
4 flash time selections (100, 115, 270 or 600 ms)
mute output type selection (M1, M1, M2 or M2)
microphone mute generated via the LSE output
DTMF keys or Function keys selection
` On-chip voltage reference for stabilized supply and temperature independent tone output
` On-chip filtering for low output distortion (CEPT compatible). 1.2 Number storage
` Redial by 'cursor' method (maximum 24 digits) stored in internal EEPROM
` Storage for 13 repertory dial numbers (16 digits each) or 10 repertory dial numbers (20 digits each) in internal EEPROM
` Access pause generation and termination: manually or by 'Atlanta' procedure
` Function keys for: LNR, Memory recall, Store, Access Pause and 1 key repertory
` Country specifications which can be stored in EEPROM are:
access pause time selection (1.5/1.0, 2.5/1.5, 3.0/3.5 or 6.0/6.0 s)
10 number repertory dialler selection (1 or 2 key)
two repertory number programming procedures (General or Germany)
repertory length (16 or 20 digits)
generating a keytone during program actions. 1.3 Ringer
` Ringer input frequency detection
` Function key for: Program Ringer
` Three-tone ringer with 4 different ringer frequencies
` Ringer melody generation with four signal speeds and four output volume steps, keypad controlled
` Country specifications which can be stored in EEPROM are:
ringer input frequency detection selection
ringer output selection (via DTMF tone output or special ringer tone output)
4 possible ringer melodies
4 possible ringer repetition rates
4 possible ringer volumes.
1.4 General
` On-chip oscillator uses low-cost 3.58 MHz (TV colour burst) crystal or PXE resonator
` On-chip power-on reset (typically 2.0 V)
` Supply voltage range 1.8 to 6.0 V (2.5 to 6.0 V in EEPROM erase/write and DTMF and ringer mode).


Pinout

Connection Diagram


Description

The PCD3330-1 is a mixed-mode multistandard repertory dialler/ringer IC fabricated in a low threshold voltage CMOS technology. The (maximum 13) repertory numbers, redial and various country specifications are stored in EEPROM so that memory retention is guaranteed for 10 years without using a battery back-up.

National telecommunications specifications of PCD3330-1 can be fulfilled by changing a few bytes in EEPROM which contain the different telephone timing and dialling procedures. The two on-chip tone generators are used for Dual Tone Multi-Frequency (DTMF) dialling, and for generating a melody during ringing, which is activated when a correct incoming ringer frequency is detected.

As an output transducer of PCD3330-1 for the ringer, a loudspeaker (ringer out via tone output) or a PXE (ringer out via the special ringer output which generates square wave ringer tones with a peak-to-peak voltage of VDD to VSS) can be used.

The operating supply voltage of PCD3330-1 is 1.8 V (2.5 V in EEPROM erase/write and DTMF and ringer mode) to 6.0 V with a low current consumption in all operating modes: standby, conversation, dialling, programming and ringer.




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