參數(shù)資料
型號： 935260618518
廠商： NXP SEMICONDUCTORS
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO28
封裝： PLASTIC, SOT-341, SSOP-28
文件頁數(shù)： 43/44頁
文件大?。?/td> 241K
代理商： 935260618518
2000 Jan 24
8
Philips Semiconductors
Product specication
5 V mixers/oscillators and synthesizers for
cable TV and VCR 2-band tuners
TDA6402; TDA6402A;
TDA6403; TDA6403A
I2C-bus mode (SW = GND)
WRITE MODE; R/W = 0 (see Tables 3 and 4)
Data bytes can be sent to the device after the address
transmission (first byte). Four data bytes are needed to
fully program the device. The bus transceiver has an
auto-increment facility which permits the programming of
the device within one single transmission
(address + 4 data bytes).
The device can also be partially programmed providing
that the first data byte following the address is divider
byte 1 (DB1) or control byte (CB). The bits in the data
bytes are defined in Tables 3 and 4. The first bit of the first
data byte transmitted indicates whether frequency data
(first bit = 0) or control and band-switch data (first bit = 1)
will follow. Until an I2C-bus STOP command is sent by the
controller, additional data bytes can be entered without the
need to re-address the device. The frequency register is
loaded after the 8th clock pulse of the second divider byte
(DB2), the control register is loaded after the 8th clock
pulse of the control byte (CB) and the band-switch register
is loaded after the 8th clock pulse of the band switch byte
(BB).
I2C-BUS ADDRESS SELECTION
The module address contains programmable address bits
(MA1 and MA0) which offer the possibility of having
several synthesizers (up to 4) in one system by applying a
specific voltage on the CE input. The relationship between
MA1 and MA0 and the input voltage applied to the CE
input is given in Table 6.
Table 3
I2C-bus data format, ‘write’ mode for the TDA6402 and TDA6403
Table 4
I2C-bus data format, ‘write’ mode for the TDA6402A and TDA6403A
NAME
BYTE
BITS
ACK
MSB
LSB
Address byte
ADB
11000
MA1
MA0
R/W = 0
A
Divider byte 1
DB1
0
N14
N13
N12
N11
N10
N9
N8
A
Divider byte 2
DB2
N7
N6
N5
N4
N3
N2
N1
N0
A
Control byte
CB
1
CP
T2
T1
T0
RSA
RSB
OS
A
Band-switch byte
BB
XXXX
FMST
PUHF
PVHFH
PVHFL
A
NAME
BYTE
BITS
ACK
MSB
LSB
Address byte
ADB
11000
MA1
MA0
R/W = 0
A
Divider byte 1
DB1
0
N14
N13
N12
N11
N10
N9
N8
A
Divider byte 2
DB2
N7
N6
N5
N4
N3
N2
N1
N0
A
Control byte
CB
1
CP
T2
T1
T0
RSA
RSB
OS
A
Band-switch byte
BB
XXXX
PUHF
FMST
PVHFH
PVHFL
A
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