參數(shù)資料
型號： MAX9850ETI+TG47
廠商： Maxim Integrated Products
文件頁數(shù)： 33/36頁
文件大?。?/td> 0K
描述： IC AMP AUDIO HDPHN STER 28WQFN
產品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 2,500
系列： DirectDrive®
類型： AB 類
輸出類型： 耳機，2-通道（立體聲）
在某負載時最大輸出功率 x 通道數(shù)量： 95mW x 2 @ 16 歐姆
電源電壓： 1.8 V ~ 3.6 V
特點： DAC，消除爆音，數(shù)字輸入，I²C，I²S，線路級輸入和輸出，靜音，關機，音量控制
安裝類型： 表面貼裝
供應商設備封裝： 28-TQFN-EP（5x5）
封裝/外殼： 28-WFQFN 裸露焊盤
包裝： 帶卷 (TR)
MAX9850
Stereo Audio DAC with DirectDrive
Headphone Amplifier
6
_______________________________________________________________________________________
TIMING CHARACTERISTICS
(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_LINE = 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
I
2C TIMING
Serial Clock Frequency
fSCL
0
400
kHz
Bus Free Time Between STOP
and START Conditions
tBUF
1.3
s
Hold Time (Repeated) START
Condition
tHD, STA
0.6
s
SCL Pulse-Width Low
tLOW
1.3
s
SCL Pulse-Width High
tHIGH
0.6
s
Repeated START Condition
Setup Time
tSU, STA
0.6
s
Data Hold Time
tHD, DAT
0
900
ns
Data Setup Time
tSU, DAT
100
ns
Bus Capacitance
CB
400
pF
SDA and SCL Receiving Rise
Time (Note 8)
tR
20 +
0.1CB
300
ns
SDA and SCL Receiving Fall
Time (Note 8)
tF
20 +
0.1CB
300
ns
DVDD = 1.8V, TA = +25°C
20 +
0.1CB
250
SDA Transmitting Fall Time
(Note 8)
tF
DVDD = 3.6V, TA = +25°C
20 +
0.05CB
250
ns
Setup Time for STOP Condition
tSU, STO
0.6
s
Pulse Width of Suppressed Spike
tSP
050
ns
DIGITAL AUDIO TIMING
BCLK Period (Note 9)
tBCLK
3 x
1 / fICLK
ns
Low or High BCLK Pulse Width
tBCLK_PW
0.35 x
tBCLK
ns
BCLK and LRCLK Rise Time
tR
Master mode, CLOAD = 15pF
1
ns
BCLK and LRCLK Fall Time
tF
Master mode, CLOAD = 15pF
1
ns
SDIN or LRCLK to BCLK Rising
Setup Time
tDBSU,
tBWSU
30
ns
DVDD = 1.8V
0
SDIN or LRCLK to BCLK Rising
Hold Time
tDBH,
tBWBH
DVDD = 3.6V
5
ns
Note 1: The MAX9850 is 100% production tested at TA = +25°C and is guaranteed by design for TA = TMIN to TMAX.
Note 2: Full operation is defined as clocking all zeros into the DAC while the DAC, headphone outputs, and line outputs are all enabled.
Note 3: DAC performance specifications measured using the line outputs, OUTL and OUTR.
Note 4: Dynamic range is defined as the SNR of a 1kHz, -60dBFS input signal measured with an A-weighted filter, then normalized
to full scale (+60dB).
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