TDA1306T/N2 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
TDA1306T/N2 Datasheet PDF : 24 Pages
| |||
Philips Semiconductors
Noise shaping filter DAC
Product specification
TDA1306T
FUNCTIONAL DESCRIPTION
The TDA1306T CMOS DAC incorporates an up-sampling
filter, a noise shaper, continuous calibrated current
sources and operational amplifiers.
System clock and data input format
The TDA1306T accommodates slave mode only.
Consequently, in all applications, the system devices must
provide the system clock. The system frequency is
selectable at pins CLKS1 and CLKS2 (see Table 1).
The TDA1306T supports the following data input modes:
• I2S-bus with data word length of up to 20 bits
(fsys = 256fs)
• LSB fixed serial format with data word length of 16, 18
or 20 bits (fsys = 384fs). As this format idles on the MSB
it is necessary to know how many bits are being
transmitted.
The input formats are illustrated in Fig.9. Left and right
data channel words are time multiplexed.
Table 1 Data input format and system clock
CLKS1
0
0
1
1
CLKS2
0
1
0
1
DATA INPUT FORMAT
I2S-bus
LSB fixed 16 bits
LSB fixed 18 bits
LSB fixed 20 bits
SYSTEM CLOCK
NORMAL SPEED DOUBLE SPEED
256fs
384fs
384fs
384fs
128fs
192fs
192fs
192fs
Device operation
When the APPL pin is held HIGH and APP3 is held LOW,
pins APP0, APP1 and APP2 form a microcontroller
interface. When the APPL pin is held LOW, pins APP0,
APP1, APP2 and APP3 form a pseudo-static application
(TDA1305T pin compatible).
PSEUDO-STATIC APPLICATION MODE (APPL = LOGIC 0)
In this mode, the device operation is controlled by
pseudo-static application pins where:
APP0 = attenuation mode control
APP1 = double-speed mode control
APP2 = mute mode control
APP3 = de-emphasis mode control.
In the pseudo-static application mode the TDA1306T is pin
compatible with the TDA1305T slave mode.
The correspondence between TDA1306T pin number,
TDA1306T pin name, TDA1305T pin mnemonic and a
description of the effects is given in Table 2.
1998 Jan 06
6
Share Link: 