參數(shù)資料
型號(hào)： TDA8745H
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： Satellite sound receiver with I2C-bus control
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP44
文件頁數(shù)： 11/40頁
文件大?。?/td> 261K
代理商： TDA8745H
1996 Mar 11
11
Philips Semiconductors
Preliminary specification
Satellite sound receiver with I
2
C-bus control
TDA8745
I
2
C-BUS PROTOCOL
Table 1
Slave receiver/transmitter address: D4 or D6 (HEX)
Notes
1.
2.
AS bit defined by level at address select (pin 12); 0 V = logic 0; 5 V = logic 1.
R/W = 0; TDA8745 is receiver (microcontroller is master transmitter).
R/W = 1; TDA8745 is transmitter (microcontroller is master receiver).
TDA8745 receiver use
In the receiver mode the device has four subaddresses with auto-increment, as shown in Tables 2 to 5.
Table 2
Input byte SA: 00; situation after POR
Table 3
Tuning byte SA: 01; situation after POR
Table 4
Select byte SA: 02; situation after POR
Table 5
Audio byte SA: 03; situation after POR
TDA8745 transmitter use
No subaddress.
Table 6
Read byte
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
AS
(1)
BIT 0
R/W
(2)
1
1
0
1
0
1
IL2
i7
IL1
i6
IL0
i5
IR2
i4
IR1
i3
IR0
i2
TUN9
i1
TUN8
i0
0
0
0
0
0
1
1
0
TUN7
t7
TUN6
t6
TUN5
t5
TUN4
t4
TUN3
t3
TUN2
t2
TUN1
t1
TUN0
t0
1
1
1
0
1
1
0
0
TEST
s7
BB
s6
OS1
s5
OS0
s4
PDM
s3
PE
s2
OML
s1
OMR
s0
0
0
0
0
0
0
1
1
LEV3
a7
LEV2
a6
LEV1
a5
LEV0
a4
NR
a3
DEM1
a2
DEM0
a1
BPFN
a0
1
1
0
0
1
1
1
0
PDL
r7
PDR
r6
r5
r4
r3
r2
r1
POR
r0
0 or 1
0 or 1
1
1
1
1
1
0 or 1
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