BassMax, I2C, Volume and Gain Control
參數(shù)資料
型號(hào): MAX9726AETP+
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 18/24頁(yè)
文件大?。?/td> 0K
描述: IC AMP AUDIO .124W STER 20TQFN
標(biāo)準(zhǔn)包裝: 75
系列: DirectDrive®
類型: AB 類
輸出類型: 耳機(jī),2-通道(立體聲)
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量: 124mW x 2 @ 16 歐姆
電源電壓: 2.7 V ~ 5.5 V
特點(diǎn): 低音增強(qiáng)模式,消除爆音,I²C,靜音,短路和熱保護(hù),關(guān)機(jī),音量控制
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 20-TQFN-EP(4x4)
封裝/外殼: 20-WFQFN 裸露焊盤(pán)
包裝: 管件
MAX9726
DirectDrive, Headphone Amplifier with
BassMax, I2C, Volume and Gain Control
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (5V Supply) (continued)
(VDD = SHDN = 5V, PGND = SGND = 0V, C1 = C2 = 1F, CPREG = CNREG = 1F, BM_ = 0V, RIN = 10kΩ, RF = 10kΩ, maximum vol-
ume (overall gain = 0dB), BassMax disabled. Load connected between OUT_ and PGND where specified. TA = TMIN to TMAX, unless
otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
BW = 22Hz to 22kHz
102
Signal-to-Noise Ratio
SNR
RL = 32
Ω,
VOUT =
1.77VRMS
A-weighted
105
dB
Slew Rate
SR
1
V/s
Capacitive Drive
No sustained oscillations
200
pF
Output Resistance in Shutdown
ROUT_SHDN
VSHDN = 0V, measured from OUT_ to
SGND
50
k
Ω
Into
shutdown
59
Click-and-Pop Level
KCP
Peak voltage, A-weighted,
32 samples per second
(Notes 2, 4)
Out of
shutdown
61
dBV
Charge-Pump Switching
Frequency
fCP
515
610
705
kHz
Crosstalk
L to R, or R to L, f = 10kHz,
VOUT = 1VP-P, RL = 32
Ω, both channels
loaded
85
dB
VOLUME CONTROL
0 to 64dB
±0.1
68dB to 96dB
±0.5
Attenuator Step Accuracy
100dB to 120dB
±2
dB
DIGITAL INPUTS (
SHDN, SDA, SCL)
Input High Voltage
VIH
0.7 x
VDD
V
Input Low Voltage
VIL
0.3 x
VDD
V
Input Leakage Current
±1
A
DIGITAL OUTPUTS (SDA)
Output Low Voltage
VOL
IOL = 3mA
0.06
V
Output High Current
IOH
VSDA = VDD
1A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
RL = 16
Ω
80
Output Power
POUT
THD+N = 1%,
fIN = 1kHz
RL = 32
Ω
70
mW
RL = 16
Ω, POUT = 15mW, fIN = 1kHz
0.05
Total Harmonic Distortion Plus
Noise
THD+N
RL = 32
Ω, POUT = 30mW, fIN = 1kHz
0.03
%
ELECTRICAL CHARACTERISTICS (3.3V Supply)
(VDD = SHDN = 3.3V, PGND = SGND = 0V, C1 = C2 = 1F, CPREG = CNREG = 1F, BM_ = 0V, RIN = 10kΩ, RF = 10kΩ, maximum
volume (overall gain = 0dB), BassMax disabled. Load connected between OUT_ and PGND where specified. TA = TMIN to TMAX,
unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
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