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| 型號： | TLV320DAC3100IRHBR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | DAC WITH PROGRAMMABLE PLL, PQCC32 |
| 封裝： | 5 X 5 MM, GREEN, PLASTIC, QFN-32 |
| 文件頁數(shù)： | 45/97頁 |
| 文件大小： | 1134K |
| 代理商： | TLV320DAC3100IRHBR |
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www.ti.com
SLAS671 – FEBRUARY 2010
3.2
Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN NOM
MAX
UNIT
AVDD(1)
Referenced to AVSS(2)
2.7
3.3
3.6
DVDD
Referenced to DVSS(2)
1.65
1.8
1.95
Power-supply voltage range
V
HPVDD
Referenced to HPVSS(2)
2.7
3.3
3.6
SPKVDD(1)
Referenced to SPKVSS(2)
2.7
5.5
IOVDD
Referenced to IOVSS(2)
1.1
3.3
3.6
Speaker impedance
Resistance applied across class-D output pins (BTL)
4
Headphone impedance
AC-coupled to RL
16
Analog audio full-scale input
0.70
VI
AVDD = 3.3 V, single-ended
VRMS
voltage
7
Stereo line output load impedance
AC coupled to RL
10
k
MCLK(3)
Master clock frequency
IOVDD = 3.3 V
50
MHz
fSCL
SCL clock frequency
400
kHz
TA
Operating free-air temperature
–40
85
°C
(1)
To minimize battery-current leakage, the SPKVDD voltage level should not be below the AVDD voltage level.
(2)
All grounds on board are tied together, so they should not differ in voltage by more than 0.2 V maximum for any combination of ground
signals. By use of a wide trace or ground plane, ensure a low-impedance connection between HPVSS and DVSS.
(3)
The maximum input frequency should be 50 MHz for any digital pin used as a general-purpose clock.
3.3
Electrical Characteristics
At 25°C, AVDD = HPVDD = IOVDD = 3.3 V, SPKVDD = 3.6 V, DVDD = 1.8 V, fS (audio) = 48 kHz, CODEC_CLKIN = 256 ×
fS, PLL = Off, VOL/MICDET pin disabled (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INTERNAL OSCILLATOR—RC_CLK
Oscillator frequency
8.2
MHz
VOLUME CONTROL PIN (ADC); VOL/MICDET PIN ENABLED
VOL/MICDET pin configured as volume control (page 0 / register 116, bit D7 = 1 and page 0 /
0.5 ×
Input voltage range
0
V
register 67, bit D7 = 0)
AVDD
Input capacitance
2
pF
Volume control steps
128
Steps
Microphone Bias
Page 1 / register 46, bits D1–D0 = 10
2.25
2.5
2.75
Voltage output
V
Page 1 / register 46, bits D1–D0 = 01
2
At 4-mA load current, page 1 / register 46, bits D1–D0 = 10 (MICBIAS = 2.5 V)
5
Voltage regulation
mV
At 4-mA load current, page 1 / register 46, bits D1–D0 = 01 (MICBIAS = 2 V)
7
AUDIO DAC
DAC Headphone Output, AC-Coupled Load = 16
(Single-Ended), Driver Gain = 0 dB, Parasitic Capacitance = 30 pF
Full-scale output voltage (0 dB)
Output common-mode setting = 1.65 V
0.707
Vrms
SNR
Signal-to-noise ratio
Measured as idle-channel noise, A-weighted
(1) (2)
80
95
dB
THD
Total harmonic distortion
0-dBFS input
–85
–65
dB
THD+N
Total harmonic distortion + noise
0-dBFS input
–82
–60
dB
Mute attenuation
87
dB
DAC Headphone Output, AC-Coupled Load = 16
(Single-Ended), Driver Gain = 0 dB, Parasitic Capacitance = 30 pF (Continued)
PSRR
Power-supply rejection ratio
(3)
Ripple on HPVDD (3.3 V) = 200 mVp-p at 1 kHz
–62
dB
RL = 32 , THD+N ≤ –60 dB
20
PO
Maximum output power
mW
RL = 16 , THD+N ≤ –60 dB
60
(1)
Ratio of output level with 1-kHz full-scale sine-wave input, to the output level with the inputs short-circuited, measured A-weighted over a
20-Hz to 20-kHz bandwidth using an audio analyzer.
(2)
All performance measurements done with 20-kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter may
result in higher THD+N and lower SNR and dynamic range readings than shown in the Electrical Characteristics. The low-pass filter
removes out-of-band noise, which, although not audible, may affect dynamic specification values.
(3)
DAC to headphone-out PSRR measurement is calculated as PSRR = 20 × log(
ΔVHPL / ΔVHPVDD).
Copyright 2010, Texas Instruments Incorporated
ELECTRICAL SPECIFICATIONS
5
Product Folder Link(s): TLV320DAC3100
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| TLV320DAC3100IRHBT | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Low-Pwr Stereo Audio DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
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