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参数资料
| 型号： | TMS57014ADWBLE |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | DUAL, SERIAL INPUT LOADING, 18-BIT DAC, PDSO28 |
| 封装： | PLASTIC, SOIC-28 |
| 文件页数： | 2/17页 |
| 文件大小： | 250K |
| 代理商： | TMS57014ADWBLE |
TMS57014A
DUAL AUDIO DIGITAL-TO-ANALOG CONVERTER
SLAS077D – SEPTEMBER 1993 – REVISED NOVEMBER 1995
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
digital interface, AVDD = DVDD = 5 V ± 5% (see Note 4)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
256FSO
IO = – 0.4 mA
VDD – 0.5
VOH
High level output voltage
L1, L 2, R1, R2
IO = – 12 mA
VDD – 0.5
V
VOH
High-level output voltage
XOUT
IO = – 1.2 mA
VDD – 0.5
V
MUTEL, MUTER
IO = – 1 mA
VDD – 0.5
256FSO
IO = 0.4 mA
0.4
VOL
Low level output voltage
L1, L 2, R1, R2
IO = 12 mA
0.5
V
VOL
Low-level output voltage
XOUT
IO = 1.2 mA
0.5
V
MUTEL, MUTER
IO = 1 mA
0.4
IIH
High-level input current, any digital input
±1
±5
A
IIL
Low-level input current, any digital input
±1
±5
A
Ci
Input capacitance
5
pF
Co
Output capacitance
5
pF
All typical values are at TA = 25°C.
NOTE 4: DVDD, AVDDL, XVDD and AVDDR tied together represents VDD.
supplies, AVDD = DVDD = 5 V ± 5%, no load
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Analog power supply current
AVDDL and AVDDR are shorted together
15
mA
Digital power supply current
15
mA
Total device supply current over operating
temperature range
60
mA
Power dissipation
350
mW
All typical values are at TA = 25°C.
DAC modulator, AVDD = DVDD = 5 V± 5%, sample rate (Fs) = 44.1 kHz, full-scale input sine wave at 1 kHz,
TA = 25°C, bandwidth is 20 Hz to 20 kHz
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Resolution
See Note 5
18
bits
Signal-to-noise ratio
A-weighted,
20 Hz to 20 kHz,
See Figure 10, Table 5, and Note 5
De-emphasis not selected
96
100
dB
Total harmonic distortion
20 Hz to 20 kHz,
See Note 5
0.003%
0.004%
All typical values are at TA = 25°C.
NOTE 5: These specifications are measured at the output (VO) of the low-pass filter shown in Figure 7.
filter characteristics, AVDD = DVDD = 5 V± 5%, de-emphasis disabled
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Pass-band ripple
Sample rate (F ) = 48 kHz
See Note 5
– 0.002
0.002
dB
Stop-band attenuation
Sample rate (Fs) = 48 kHz, See Note 5
75
dB
Pass band (– 3 dB) (DAC)
0
0.46 Fs
kHz
Stop band
See Note 5
0.54 Fs
kHz
Group delay
29 / Fs
s
All typical values are at TA = 25°C.
NOTE 5: These specifications are measured at the output (VO) of the low-pass filter shown in Figure 7.
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