Electronic Components Datasheet Search |
|
PCD3312C Datasheet(PDF) 7 Page - NXP Semiconductors |
|
PCD3312C Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 28 page 1996 Nov 21 7 Philips Semiconductors Product specification DTMF/modem/musical-tone generators PCD3311C; PCD3312C Fig.5 Timing of STROBE, parallel data inputs and TONE output (770 Hz + 1477 Hz in example) in the parallel mode (MODE = HIGH). handbook, full pagewidth MGG511 tSPW tDS tDH 90% 10% oscillator ON no output tone oscillator ON output tones oscillator OFF ttone (ON) STROBE D0 D1 D2 D3 D4 D5 TONE 7.6 I2C-bus clock and data inputs SCL and SDA are the serial clock and serial data inputs according to the I2C-bus specification, see Chapter 8. SCL and SDA must be pulled up externally to VDD. For the PCD3311C, SCL and SDA are combined with parallel inputs D0 and D1 respectively - D0/SCL and D1/SDA operate serially only when MODE is LOW. 7.7 Address input Address input A0 defines the least significant bit of the I2C-bus address of the device (see Fig.6). The first 6 bits of the address are fixed internally. By tying the A0 of each device to VDD (HIGH) and VSS (LOW) respectively, two different PCD3311C or PCD3312C devices can be individually addressed on the bus. Whether one or two devices are used, A0 must be connected to VDD or VSS. 7.8 I2C-bus data configuration (see Fig.6) The PCD3311C and PCD3312C are always slave receivers in the I2C-bus configuration. The R/W bit in is thus always LOW, indicating that the master (microcontroller) is writing. The slave address in the serial mode consists of 7 bits: 6 bits internally fixed, 1 externally set via A0. in the serial mode, the same input data codes are used as in the parallel mode. See Tables 2, 3, 4 and 5. 7.9 Tone output The single and dual tones provided at the TONE output are first filtered by an on-chip switched-capacitor filter, followed by an active RC low-pass filter. The filtered tones fulfil the CEPT recommendations for total harmonic distortion of DTMF tones. An on-chip reference voltage provides output tone levels independent of the supply voltage. Tables 3, 4 and 5 give the frequency deviation of the output tones with respect to the standard DTMF, modem and music frequencies. |
Similar Part No. - PCD3312C |
|
Similar Description - PCD3312C |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | 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 |