Philips TDA1312AT, TDA1312A Datasheet
INTEGRATED CIRCUITS
DATA SH EET
TDA1312A; TDA1312AT
Stereo continuous calibration
DAC (CC-DAC)
Preliminary specification
File under Integrated Circuits, IC01
July 1993
Philips Semiconductors Preliminary specification
Stereo continuous calibration
DAC (CC-DAC)
FEATURES
• 8 × oversampling (simultaneous input) possible
• Voltage output
• Space saving package SO8 or DIL8
• Low power consumption
• Wide dynamic range (16-bit resolution)
• Continuous Calibration (CC) concept
• Easy application:
– single 4 to 5.5 V rail supply
– output current and bias current are proportional to the
supply voltage
– integrated current-to-voltage converter
• Internal bias current ensures maximum dynamic range
• Wide operating temperature range (−40 °C to + 85 °C)
• Compatible with most current Japanese input formats:
time multiplexed, two's complement and TTL
• No zero-crossing distortion
• Cost efficient.
TDA1312A; TDA1312AT
GENERAL DESCRIPTION
The TDA1312A; 1312AT is a voltage driven D/A converter
and is a device of a new generation of digital-to-analog
converters which embodies the innovative technique of
Continuous Calibration (CC). The largest bit-currents are
repeatedly generated by one single current reference
source. This duplication is based upon an internal charge
storage principle having an accuracy insensitive to ageing,
temperature matching and process variations.
The TDA1312A; 1312AT is fabricated in a 1.0 µm CMOS
process and features an extremely low power dissipation,
small package size and easy application. Furthermore, the
accuracy of the intrinsic high coarse-current combined
with the implemented symmetrical offset decoding method
preclude zero-crossing distortion and ensures high quality
audio reproduction. Therefore, the CC-DAC is eminently
suitable for use in (portable) digital audio equipment.
ORDERING INFORMATION
EXTENDED TYPE NUMBER
TDA1312A
TDA1312AT
Notes
1. SOT97-1; 1996 August 14.
2. SOT96-1; 1996 August 14.
(1)
(2)
PACKAGE
PINS PIN POSITION MATERIAL CODE
8 DIL plastic SOT97DE
8 SO8 plastic SOT96AG
July 1993 2
Philips Semiconductors Preliminary specification
Stereo continuous calibration
TDA1312A; TDA1312AT
DAC (CC-DAC)
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
DD
I
DD
V
FS
(THD+N)/S total harmonic distortion plus
S/N signal-to-noise ratio at
t
CS
BR input bit rate at data input −−18.4 Mbits/s
f
BCK
TC
FS
T
amb
P
tot
supply voltage 4 5 5.5 V
supply current VDD = 5 V; at code 0000H − 3.4 6.0 mA
full scale output voltage VDD = 5 V 1.8 2.0 2.2 V
at 0 dB signal level −−68 −63 dB
noise
− 0.04 0.07 %
at −60 dB signal level −−30 −24 dB
− 36%
at −60 dB signal level;
A-weighted
−−33 − dB
− 2 − %
A-weighted; at code 0000H 86 92 − dB
bipolar zero
current settling time to ±1
− 0.2 −µs
LSB
clock frequency at clock
−−18.4 MHz
input
full scale temperature
−±400 − ppm
coefficient at analog
outputs (IOL; IOR)
operating ambient
−40 −+85 °C
temperature
total power dissipation VDD = 5 V; at code 0000H − 17 30 mW
July 1993 3
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July 1993 4
handbook, full pagewidth
Philips Semiconductors Preliminary specification
Stereo continuous calibration
DAC (CC-DAC)
V
OL
BCK
DATAR
DATAL
WS
LEFT INPUT REGISTER
LEFT OUTPUT REGISTER
6
I / V
I
OL
1
2
3
8
LEFT BIT SWITCHES
11-BIT
PASSIVE
DIVIDER
CONTROL
AND
TIMING
32 (5-BIT)
CALIBRATED
CURRENT
SOURCES
1 CALIBRATED
SPARE SOURCE
RIGHT INPUT REGISTER
RIGHT OUTPUT REGISTER
RIGHT BIT SWITCHES
32 (5-BIT)
CALIBRATED
CURRENT
SOURCES
1 CALIBRATED
SPARE SOURCE
TDA1312A
TDA1312AT
11-BIT
PASSIVE
DIVIDER
REFERENCE
SOURCE
GND
7
I / V
I
OR
4
C2
100 nF
V
OR
5
V
DD
MGE225
TDA1312A; TDA1312AT
Fig.1 Block diagram.
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