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TDA1314 데이터시트(Datasheet) 1 Page - NXP Semiconductors

부품명 TDA1314
상세내용  Quadruple filter DAC
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제조사  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
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August 1994
2
Philips Semiconductors
Product specification
Quadruple filter DAC
TDA1314T
FEATURES
• High dynamic range to enable digital DSP (Digital Signal
Processor) volume control
• 18 bits data input format for each of the four channels
• Four times bit-serial oversampling filter
• 1st-order 4fas (audio sampling frequency) noise shaper
• Four very low noise DACs
• Only 1st-order analog post filtering required
• Smooth power-on of the DAC output currents
• Because of the automatic digital PLL divider range
setting the master clock is selectable in a wide 4fas
integer range
• Insensitive to jitter on the I2S-bus signals with respect to
the DAC total harmonic distortion deterioration.
APPLICATIONS
• Stand-alone quadruple low noise DAC
• Car radio DAC in conjunction with DSP.
GENERAL DESCRIPTION
The TDA1314T is a quadruple very low noise high
dynamic range DAC which is intended for use in motor
cars and is controlled by the car radio DSP. Each channel
incorporates an 8th-order IIR up-sampling filter from 1ASF
to 4ASF followed by a 1st-order noise shaper and DAC.
The DAC currents are converted to audio voltage signals
using operational amplifiers (one per channel).
QUICK REFERENCE DATA
Vref = 2.5 and 5 V; Tamb = 25 °C; all voltages referenced to ground; unless otherwise specified.
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VDDA
analog supply voltage
4.5
5.0
5.5
V
VDDD
digital supply voltage
4.5
5.0
5.5
V
IO(DAC)
DAC output current (FS)
Rref = 20.5 kΩ
±0.4
±0.5
±0.6
mA
VO(DAC)
DAC output voltage,
nominal DAC operational
amplifier output voltage
RL ≥ 5 kΩ; Rfb = 3 kΩ
1.0
4.0
V
RES
DAC resolution
length of data input word
18
bits
(THD + N)/S
total harmonic distortion
plus noise-to-signal ratio
fi = 1 kHz;
0 dB signal level
−66
−56
dB
DR
dynamic range of DAC
fi = 1 kHz;
−60 dB signal level
92
96
dB
DS
digital silence
no signal; A-weighted
−110
−100
dB
Ptot
total power dissipation
85
mW
Tamb
operating ambient
temperature
−40
+25
+85
°C
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA1314T
SO28
plastic small outline package; 28 leads; body width 7.5 mm
SOT136-1




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