 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
PCD5032 Datasheet(PDF) 11 Page - NXP Semiconductors |
|
|
|||||||||||||||||||||||||||||
PCD5032 Datasheet(HTML) 11 Page - NXP Semiconductors |
|
|
11 / 24 page  1997 Apr 03 11 Philips Semiconductors Product specification ADPCM CODEC for digital cordless telephones PCD5032 Table 2 Overview of gain control options 7.2.2 SIDETONE With the I2C-bus interface the (local) sidetone level can be set to −12, −18, −24 dB, or switched off. See Table 3. The sidetone level is independent of the receiver volume control setting. 7.2.3 TONE GENERATOR AND RINGER The PCD5032 contains a programmable tone generator which can be used for generating ringer tones (BZ+, BZ −) or local information tones in the receive path (RE+, RE −). By setting the TONE bit (bit 3) in the operation mode register, the tone output will be directed to the receiver DAC, otherwise the tones will be sent to the ringer output stage. Table 4 shows the possible frequency and volume settings. FUNCTION I2C-CODE GAIN NOTE Receiver gain (relative) 01XXX101 −3dB 01XXX110 −2dB 01XXX111 −1dB 01XXX000 0 dB default 01XXX001 +1 dB 01XXX010 +2 dB 01XXX011 +3 dB 01XXX100 +4 dB Receiver volume 01000XXX 0 dB default 01001XXX −6dB 01010XXX −12 dB 01011XXX −18 dB 01100XXX −24 dB 01101XXX −30 dB 01110XXX −36 dB 01111XXX RX MUTE Transmitter gain (relative) 10XXX101 −3dB 10XXX110 −2dB 10XXX111 −1dB 10XXX000 0 dB default 10XXX001 +1 dB 10XXX010 +2 dB 10XXX011 +3 dB 10XXX100 +4 dB Transmitter mute 10XX1XXX TX MUTE default OFF Table 3 Sidetone level options Table 4 Tone output frequency/volume options The ringer output (BZ) is differential and is intended for low-ohmic devices. If the ringer is switched off then both outputs are low. The output signal is a pulse density modulated block wave (on a 32 kHz basic pulse rate) to generate a sinewave-like output signal, see Fig.9. Volume is controlled by changing the pulse width of each pulse. In the square wave mode a full square wave is generated and results in the maximum volume. The volume settings (in dB) are given for the first harmonic signal component. FUNCTION I2C-CODE OPTION NOTE Sidetone 1000XXXX No local sidetone default 1001XXXX Level = −12 dB 1010XXXX Level = −18 dB 1011XXXX Level = −24 dB FUNCTION I2C-CODE OPTION NOTE Volume (relative) 11XXX000 Signal off default 11XXX001 −29 dB sinewave 11XXX010 −23 dB sinewave 11XXX011 −17 dB sinewave 11XXX100 −11 dB sinewave 11XXX101 −5 dB sinewave 11XXX110 −0 dB sinewave 11XXX111 +4 dB squarewave Frequency 11000XXX 400 Hz 11001XXX 421 Hz 11010XXX 444 Hz 11011XXX 800 Hz 11100XXX 1000 Hz 11101XXX 1067 Hz 11110XXX 1333 Hz 11111XXX 2000 Hz |
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
