TDA1386T Philips Semiconductors, TDA1386T Datasheet - Page 6

• Manufacturer Part Number: TDA1386T
• Description: Noise shaping filter DAC
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FUNCTIONAL DESCRIPTION
The TDA1386T CMOS DAC incorporates an up-sampling
filter, a noise shaper, continuous calibrated current
sources and operational amplifiers.
System clock and data input format
The TDA1386T accommodates slave mode only
consequently, in all applications, the system devices must
provide the 256f
Table 1 Data input format and system clock
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 pseudo-static application
pins (TDA1305T pin compatible).
P
In this mode, the device operation is controlled by
pseudo-static application pins (APP0: attenuation mode
control; APP1: double-speed mode control; APP2: mute
mode control and APP3: de-emphasis mode control).
Table 2 Pseudo-static application mode
1998 Jan 06
SEUDO
Noise shaping filter DAC
PIN NAME
APP0
APP1
APP2
APP3
CKSL1
-
STATIC APPLICATION MODE
0
0
1
1
s
system clock.
PIN NUMBER
17
16
15
13
CKSL2
0
1
0
1
(APPL =
FUNCTION
TDA1305T
DEEM1
DSMB
MUSB
ATSB
I
LSB fixed 16 bits
LSB fixed 18 bits
LSB fixed 20 bits
DATA INPUT FORMAT
2
S-bus
LOGIC
0)
VALUE
LOGIC
0
1
0
1
0
1
0
1
6
The TDA1386T supports the following data input modes:
The data input formats are illustrated in Fig.7. Left and
right data-channel words are time multiplexed.
In the pseudo-static application mode the TDA1386T is pin
compatible with the TDA1305T slave mode. The
correspondence between TDA1386T pin number,
TDA1386T pin name, TDA1305T pin name and a
description of the effects is given in Table 2.
I
LSB fixed serial format with data word length of 16, 18
or 20 bits. As this format idles on the MSB it is necessary
to know how many bits are being transmitted.
2
S-bus with data word length of up to 20 bits.
(only if MUSB = 1)
full scale (only if MUSB = 1)
normal-speed mode
level in accordance with ATSB
de-emphasis ON (44.1 kHz)
12 dB attenuation (from full scale) activated
double-speed mode
samples decrease to mute level
de-emphasis OFF (44.1 kHz)
NORMAL SPEED
256f
256f
256f
256f
s
s
s
s
SYSTEM CLOCK
DESCRIPTION
DOUBLE SPEED
Product specification
TDA1386T
128f
128f
128f
128f
s
s
s
s