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参数资料
| 型号： | CMOD232+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 31/36页 |
| 文件大小： | 0K |
| 描述： | EVAL SYSTEM FOR MAX9850 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | * |
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MAX9850
Stereo Audio DAC with DirectDrive
Headphone Amplifier
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(DVDD = AVDD = PVDD = 3.0V, AGND = DGND = PGND = 0V, C1 = 0.47F, C2 = 2.2F, CNREG = CPREG = CREF = 1F to AGND,
RLOAD_HP = 32
Ω to AGND, RLOAD_OUT = 10kΩ to AGND, fLRCLK = 48kHz, fMCLK = 12.288MHz, volume set to -9.5dB, TA = TMIN to
TMAX, unless otherwise noted. Typical specifications at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
HEADPHONE OUTPUTS (HPL, HPR)
RL = 16
Ω
AVDD = 3.0V
95
RL = 32
Ω
AVDD = 3.0V
40
65
RL = 16
Ω
AVDD = 1.8V
30
Output Power
OUT
THD+N = 1%
fIN = 1kHz, headphone
volume = +6dB
RL = 32
Ω
AVDD = 1.8V
15
25
mW
Full-Scale Headphone Amplifier
Output Voltage
VOUT_FS
Volume = +5dB, HP unloaded
1.16
1.23
1.30
VRMS
Line In to HP Output Voltage
Gain
AV_HP
Volume = +3dB, HP unloaded
1.34
1.41
1.48
V/V
RL = 32
Ω, POUT = 60mW, fIN = 1kHz
-94
Total Harmonic Distortion Plus
Noise
THD+N
RL = 16
Ω, POUT = 60mW, fIN = 1kHz
-90
dB
Unweighted
88
A-weighted
90
AVDD = 1.8V, unweighted
88
Signal-to-Noise Ratio (Note 6)
SNR
AVDD = 1.8V, A-weighted
91
dB
VRIPPLE = 100mVP-P, frequency = 1kHz,
applied to AVDD and PVDD
91
Power-Supply Rejection Ratio
PSRR
VRIPPLE = 100mVP-P, frequency = 20kHz,
applied to AVDD and PVDD
72
dB
TA = +25°C
-15
+15
Headphone Output Offset
Voltage
VOS_HP
Volume = -11.5dB
TA = TMIN to TMAX
-25
+25
mV
Slew Rate
SR
0.47
V/s
Maximum Capacitive Load
CL
No sustained oscillations
150
pF
Crosstalk
XTALK
RHP = 32
Ω, POUT = 3.5mW, fIN = 1kHz
(HPL to HPR) or (HPR to HPL)
-85
dB
Channel-to-Channel Gain
Matching
ΔAV/AV
±0.05
dB
Internal Charge-Pump Oscillator
Frequency
fCP
550
667
775
kHz
Charge-Pump Operating
Frequency Range
Charge-pump clock derived from MCLK
550
775
kHz
Volume Control Range
-73.5
+6.0
dB
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