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參數(shù)資料
| 型號： | TS4851EIJT |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | MONO 1 W SPEAKER AND STEREO 160 mW HEADSET BTL DRIVERS WITH DIGITAL VOLUME CONTROL |
| 中文描述： | 單聲道1瓦喇叭和立體聲耳機(jī)橋接160毫瓦司機(jī)數(shù)字音量控制 |
| 文件頁數(shù)： | 3/28頁 |
| 文件大小： | 1020K |
| 代理商： | TS4851EIJT |
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SPI Bus Interface
TS4851
3/28
2 SPI Bus Interface
2.1 Description of SPI operation
The serial data bits are organized into a field containing 8 bits of data as shown in
Table 3
. The DATA 0 to
DATA 2 bits determine the output mode of the TS4851 as shown in
Table 2
. The DATA 3 to DATA 7 bits
determine the gain level setting as illustrated by
Table 3
. For each SPI transfer, the data bits are written to
the DATA pin with the least significant bit (LSB) first. All serial data are sampled at the rising edge of the
CLK signal. Once all the data bits have been sampled, ENB transitions from logic-high to logic low to
complete the SPI sequence. All 8 bits must be received before any data latch can occur. Any excess CLK
and DATA transitions will be ignored after the height rising clock edge has occurred. For any data
sequence longer than 8 bits, only the first 8 bits will get loaded into the shift register and the rest of the bits
will be disregarded.
Table 2.
Pin description
Pin
Functional Description
DATA
CLK
ENB
This is the serial data input pin.
This is the clock input pin.
This is the SPI enable pin active at high level.
Table 3.
Bit allocation
DATA
MODES
LSB
DATA 0
DATA 1
DATA 2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
Mode 1
Mode 2
Mode 3
gain 1
gain 2
gain 3
gain 4
gain 5
MSB
Table 4.
Output mode selection: G from -34.5dB to +12dB (by steps of 1.5dB)
Output
Mode #
DATA 2
DATA 1
DATA 0
SPKERout
1
1)
SD = Shutdown Mode, P = Phone in Input, R = Rin input and L = Lin input
Rout
Lout
0
1
2
3
4
5
0
0
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
SD
SD
SD
SD
SD
6dBxP
SD
Gx(R+L)
SD
Gx(R+L)
+6dBxP
SD
6dBxP
0dBxP
SD
GxR
SD
0dBxP
SD
GxL
SD
6
7
1
1
1
1
0
1
GxR+0dBxP
GxR+0dBxP
GxL+0dBxP
GxL+0dBxP
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|---|---|
| TS4851 | MONO 1 W SPEAKER AND STEREO 160 mW HEADSET BTL DRIVERS WITH DIGITAL VOLUME CONTROL |
| TS4851IJT | MONO 1 W SPEAKER AND STEREO 160 mW HEADSET BTL DRIVERS WITH DIGITAL VOLUME CONTROL |
| TS4855IJT | LOUDSPEAKER & HEADSET DRIVER WITH VOLUME CONTROL |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS4851IJT | 功能描述:音頻放大器 Low Power Audio Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TS4855 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOUDSPEAKER & HEADSET DRIVER WITH VOLUME CONTROL |
| TS4855_04 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOUDSPEAKER & HEADSET DRIVER WITH VOLUME CONTROL |
| TS4855EIJT | 功能描述:音頻放大器 Loudspeaker and headset driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TS4855IJT | 功能描述:音頻放大器 Low Power Audio Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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