參數(shù)資料
型號: TDA7445
廠商: STMICROELECTRONICS
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDIP28
封裝: DIP-28
文件頁數(shù): 8/14頁
文件大?。?/td> 194K
代理商: TDA7445
QUICK REFERENCE DATA
Symbol
Parameter
Min.
Typ.
Max.
Unit
VDD
DC Supply Voltage
3
3.3
3.6
V
IDD
DC Supply Current
130
mA
fxtal
Input Crystal Frequency
27
MHz
Ptot
Power Dissipation
0.46
W
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VS
Supply Voltage
-0.5 to 4
V
Tamb
Operating ambient Temperature Range
0 to 70
°C
Tstg
Storage Temperature range
-40 to +150
°C
Vi
Maximum Input or Signal Voltage
5
V
N.
Name
Type
Function
17
SDA
BIDIR
Serial control interface data
18
LR
BDIR
Serial interface Left/Right
19
SDOUT
OUTPUT
Serial interface data out Right and Left channels
20
SDIN
INPUT
Serial interface data in Right and Left channels
21
SCLK
BDIR
Serial interface data clock
22
MCLK
BDIR
Serial interface Master Clock
23
VSS1
POWER
Digital ground DA/AD
24
VDD1
POWER
Digital power DA/AD
25
AOUT2R
OUTPUT
Analog output Surround channel
26
AOUT2L
OUTPUT
Analog output Center channel
27
VREF3
INPUT
Reference voltage for DA/AD
28
AOUT1R
OUTPUT
Analog output Right channel
All the power pin must be routed in star from the out-
put of the voltage regulator.
The digital pins are 5V tolerant to be able to interface
with 5V logic:
SDA and SCL for I
2C
SDIN, SDOUT, LR, SCLK, MCLK for I
2S
The Quartz must be placed as closed as possible from
the XT pins.
PIN CONNECTION (Top view)
VDD1
VSS1
Analog power for DA/AD (*)
VDDA1
VSSA1
Analog power for DA/AD(*)
VDD2
VSS2
Digital power for CLOCK(*)
generator
VDDA2
VSSA2
Analog power for CLOCK(*)
generator
VDD3
VSS3
Digital power for CORE(*)
(*) All the supply voltages must be kept separated (see figure 1)
TDA7445 - TDA7445D
3/14
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