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参数资料
| 型号： | TDA7427AAD1 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 200 MHz, PDSO28 |
| 封装： | SO-28 |
| 文件页数： | 4/21页 |
| 文件大小： | 160K |
| 代理商： | TDA7427AAD1 |
dress being transmitted.
After this comparison, the TDA7427A will gener-
ate an ”acknowledge” on the SDA line and will
perform either a read or write operation according
to the state of R/W bit.
Write Operation
Following a START condition the master sends a
slave address word with the R/W bit set to ”0”.
The TDA7427A will ”acknowledge” after this first
transmission and wait for a second word (the
word address field).
This 8 bit address field provides an access to any
of the 8 internal addresses. Upon receipt of the
word address the TDA7427A slave device will re-
spond with an ”acknowledge”. At this time, all the
following words transmitted to the TDA7427A will
be considered as Data. The internal address will
be automatically incremented. After each word re-
ceipt the TDA7427A will answer with an ”acknow-
ledge”.
SOFTWARE SPECIFICATION
I
2C Protocol
The interface protocol comprises:
A start condition (s)
A chip address byte (the LSB determines
read/write transmission)
A sub-address byte.
A sequence of data (N-bytes + acknowledge)
A stop condition (P)
CHIP ADDRESS
MSB
LSB
FUNCTION
110001
C
1
0
ADDR pin open
1
ADDR pin connected to VDD
SUBADDRESS
MSB
LSB
FUNCTION
T3
T2
T1
I
A3
A2
A1
A0
0000
Charge pump control
0001
PLL counter 1 (LSB)
0010
PLL counter 2 (MSB)
0011
PLL reference counter 1 (LSB)
0100
PLL reference counter 2 (MSB)
0101
PLL lockdetector control and PLL mode select
0110
IFC reference counter 1 (LSB)
0111
IFC reference counter 2 (MSB) and IFC mode select
1000
IF counter control 1
1001
IF counter control 2
1010
Oscillator adjust
1011
Port extension
0
page mode off
1
page mode enabled
T1, T2, T3 used for testing, in application mode they have to be ”0”
CHIP ADDRESS
SUBADDRESS
DATA 1 to DATA n
MSB
LSB
MSB
LSB
MSB
LSB
S
11000
C R/W ACK T
T
I
A3 A2 A1 A0 ACK
DATA
ACK
P
ACK = Acknowledge
S = Start
P = Stop
I = Auto Increment
C = chip select
T = used for testing (in application mode they have to be ” 0”)
MAX CLOCK SPEED 400kbits/s
TDA7427A
12/21
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7427AD1 | 功能描述:音频 DSP AM/FM Radio Freq Syn RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TDA7427AD1TR | 功能描述:锁相环 - PLL AM/FM Radio Freq Syn RoHS:否 制造商:Silicon Labs 类型:PLL Clock Multiplier 电路数量:1 最大输入频率:710 MHz 最小输入频率:0.002 MHz 输出频率范围:0.002 MHz to 808 MHz 电源电压-最大:3.63 V 电源电压-最小:1.71 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:QFN-36 封装:Tray |
| TDA7427D | 功能描述:音频 DSP AM/FM Radio Freq Syn RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TDA7429 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX |
| TDA7429L | 功能描述:音频 DSP 3-Band Equalizer RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
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