參數(shù)資料
型號: MAX9877EWP+TG45
廠商: Maxim Integrated Products
文件頁數(shù): 16/30頁
文件大小: 0K
描述: IC AUDIO SUBSYSTEM 20-WLP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
系列: DirectDrive®
類型: D 類
輸出類型: 1-通道(單聲道),帶立體聲耳機(jī)
在某負(fù)載時最大輸出功率 x 通道數(shù)量: 825mW x 1 @ 4 歐姆; 53mW x 2 @ 16 歐姆
電源電壓: 2.7 V ~ 5.25 V
特點: 消除爆音,I²C,輸入多路復(fù)用器,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-WLP
封裝/外殼: 20-WFBGA,WLBGA
包裝: 帶卷 (TR)
MAX9877
Table 6. Oscillator Modes
OSC
B1
B0
CLASS D OSCILLATOR MODE (kHz)
CHARGE-PUMP OSCILLATOR MODE (kHz)
0
1176, spread spectrum
588, spread spectrum
0
1
1100, fixed frequency
550, fixed frequency
1
0
700, fixed frequency
350, fixed frequency
1
Reserved
Table 7. Output Modes
OUTMODE
ΔIN_ = 0
(THE SINGLE-ENDED INPUT SIGNALS
ARE DEFINED AS IN_1 = LEFT AND
IN_2 = RIGHT)
ΔIN_ = 1
(THE DIFFERENTIAL INPUT SIGNAL IS
DEFINED AS IN_Δ = IN_2 - IN_1)
MODE
B3
B2
B1
B0
SPK
LEFT HP
RIGHT HP
SPK
LEFT HP
RIGHT HP
0
0000
Reserved
1
0001
INA1+INA2
INAΔ
——
2
0010
INA1
INA2
INAΔ
3
0011
INA1+INA2
INA1
INA2
INAΔ
4
0100
INB1+INB2
INBΔ
——
5
0101
INB1
INB2
INBΔ
6
0110
INB1+INB2
INB1
INB2
INBΔ
7
0111
INA1+INA2
+INB1+INB2
INAΔ+INBΔ
——
8
1000
INA1+INB1
INA2+INB2
INAΔ
+INBΔ
INAΔ +INBΔ
9
1001
INA1+INA2
+INB1+INB2
INA1+INB1
INA2+INB2
INAΔ+INBΔ
INAΔ
+INB_
INAΔ +INBΔ
10–15
Reserved
— = Amplifier Off
Low RF Susceptibility, Mono Audio
Subsystem with DirectDrive Headphone Amplifier
______________________________________________________________________________________
23
Bypass Mode (BYPASS)
1 = MAX9877 bypass switches are closed and the
Class D amplifier is disabled.
0 = Bypass mode disabled.
This mode does not control headphone operation.
Output Configuration (OUTMODE)
The MAX9877 has a stereo DirectDrive headphone ampli-
fier and a mono Class D amplifier. Table 7 shows how
each of the output amplifiers can be configured and con-
nected to the input signals. For simplicity, not all possible
combinations of
ΔINA and ΔINB are shown.
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