AN2546FH-A Panasonic Corporation of North America, AN2546FH-A Datasheet - Page 21

• Manufacturer Part Number: AN2546FH-A
• Description: Automotive Lcd Tv Signal Processor Ic
• Manufacturer: Panasonic Corporation of North America

I Terminal Equivalent Circuits (continued)
I Usage Notes
I Technical Data
• The supply voltage applied to pin 6, pin 25, pin 29, pin 44, and pin 58 must be brought up at the same time.
• The crystal oscillator used must be evaluated thoroughly, because chrominance signal processing system characteris-
• The conversion of the analog RGB signals and the analog OSD signals with synchronous signals is not supported.
• Input the analog RGB signals and the analog OSD signals after filtering the pedestal parts of these signals.
• Evaluated thoroughly on the application of this device in PAL.
1. Serial interface description
Pin No.
tics change by the crystal oscillator type.
1) I
64
(1) Start condition
(2) Slave address transfer
of signal lines of data and shift clock.
to be transmitted from then. Once the stop condition is set up, the next transmitting data will be ignored until the
start condition is set up.
upgrade mode which transmits subaddress + data by 2 bytes.
2
C bus control mode
A serial data is capable of transferring 9-bit unit of 8-bit transfer data and 1-bit answering data using two kinds
When a slave address after setting a start condition matches the address on the IC side, you can receive the data
There are two kinds of transfer mode: an auto-increment mode which does not transmit subaddress, and data
The typical models of communication sequence are shown below:
available.
Pin 48
S-data
Pin 47
SCLK
The slave address of the AN2546FH-A is 88h.
When the S-data changes from high level to low level at SCLK = high level, a data receiving mode becomes
Start condition
Pin 58
Pin 59
GND
V
CC1
64
Equivalent circuit
1
190 Ω
1 kΩ
2
3
SDB00081BEB
4
5
VXO2:
PAL and PAL-M crystal os-
cillator connecting pin
Use the capacitor with tem-
perature characteristics
(N750) to connect to the
crystal oscillator.
6
Description
7
8
Acknowledge bit
9
Subaddress transfer
Voltage · Waveform
1
AN2546FH-A
2

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