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Information as of 2000-01-10
 Latest information online
PCD3316; Caller-ID on Call Waiting (CIDCW) receiver
| Description |  |
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The PCD3316 is a low power mixed signal CMOS integrated circuit for receiving
physical layer signals like Bellcore’s ‘CPE 1 Alerting Signal (CAS)’ and the signals
used in similar services. The device is capable of a very high precision detection of
the dual tone (2130 and 2750 Hz) by using a patented digital algorithm. The
PCD3316 can be used for on-hook and off-hook Caller-ID (CID), Caller-ID on Call
Waiting (CIDCW) and Caller-Name (CNAM) applications.
For timing purposes the PCD3316 can be programmed to generate an interrupt
signal to the microcontroller every second or every minute. These timings are derived
from an on-chip 32.768 kHz oscillator.
Also incorporated in the device are a Frequency Shift Keying (FSK)
receiver/demodulator and a ‘Ring or polarity change detector’. The status of the
PCD3316, the received FSK data bytes and the ringer period can be read and many
options can be selected via the I²C-bus serial interface. Two on-chip oscillators are
available. One 3.58 MHz oscillator for all internal functions and a low frequency
32.768 kHz oscillator for the 1 second or 1 minute timing.
In Power-down mode only the polarity comparators and the 32.768 kHz oscillator are
active. The CAS detection, the FSK receiver and the 3.58 MHz oscillator can be
enabled separately. Detection of a polarity change on the inputs POL0 or POL1, the
reception of an FSK data byte, the detection of a CAS tone or a timebase interrupt is
signalled to the microcontroller by an interrupt request signal (IRQ). The
microcontroller can communicate with the PCD3316 device via the serial interface.
The PCD3316 is designed for use in a microcontroller controlled system. The device
is available in a SO16 package.
A demonstration board OM5843 and an application note AN98071 are available.
| Features | |
- Bellcore’s ‘CPE Alerting Signal (CAS)’ and British Telecom’s (BT) ‘Loop State
Tone Alert Signal’ detection
- BT’s ‘Idle State Tone Alert Signal’ by means of monitoring the input signal level
- 1200 baud FSK demodulator conform Bell 202 and CCITT V23 standards
- Ring or polarity change detector
- Ring period measurement
- Low battery comparator
- Signal level detector
- On-hook and off-hook applications according to Bellcore TR-NWT-000030and
SR-TSV-002476specifications
- Receive sensitivity of -37.8 dBm (in 600 W) for CAS
- 2.5 to 3.6 V supply; low power standby mode
- Selectable 1 second or 1 minute timebase interrupt
- 3.58 MHz and 32.768 kHz crystal oscillators
- SO16 package.
| Applications | |
- Analog Display Services Interface (ADSI) phones
- Feature phones and adjunct boxes with Bellcore CID, CIDCW and CNAM systems
- Computer Telephony Integrated (CTI) systems.
| Datasheet | |
| Products, packages, availability and ordering | |
Detailed discontinuation information Please note, devices listed in the "Products, packages, availability and ordering" table marked with "WIT" are discontinued. Devices marked with "DOD" will be in the near future.
Contact your nearest sales or distributor office for the latest information on product status and availability.
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PCD3316 links to the similar products page containing an overview of products that are similar in function or related to the part number(s) as listed on this page. The similar products page includes products from the same catalog tree(s) , relevant selection guides and products from the same functional category.
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