ADV7305AKST Analog Devices Inc, ADV7305AKST Datasheet - Page 15

• Manufacturer Part Number: ADV7305AKST
• Description: IC ENCODER VIDEO 14BIT 64LQFP
• Manufacturer: Analog Devices Inc
• Type: Video Encoderr

Specifications of ADV7305AKST

• Applications: DVD, SD/HD
• Voltage - Supply, Analog: 2.5V
• Voltage - Supply, Digital: 2.5V
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Number Of Dac's: 6
• Adc/dac Resolution: 14b
• Screening Level: Commercial
• Package Type: LQFP
• Pin Count: 64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REGISTER ACCESSES
The MPU can write to or read from all of the registers of the
ADV7304A/ADV7305A except the subaddress registers that are
write-only registers. The subaddress register determines which
register the next read or write operation accesses. All communica-
tions with the part through the bus start with an access to the
subaddress register. Then a read/write operation is performed
from/to the target address, which then increments to the next
address until a stop command on the bus is performed.
REV. A
SEQUENCE
SEQUENCE
WRITE
READ
S SLAVE ADDR A(S)
S SLAVE ADDR A(S)
S = START BIT
P = STOP BIT
LSB = 0
A(S) = ACKNOWLEDGE BY SLAVE
A(M) = ACKNOWLEDGE BY MASTER
SUB ADDR
SUB ADDR
Figure 18. Read and Write Sequence
A(S)
A(S) S SLAVE ADDR
DATA
–15–
LSB = 1
REGISTER PROGRAMMING
The following section describes the functionality of each regis-
ter. All registers can be read from as well as written to unless
otherwise stated.
Subaddress Register (SR7–SR0)
The Communications Register is an 8-bit write-only register. After
the part has been accessed over the bus and a read/write operation
is selected, the subaddress is set up. The Subaddress Register
determines to/from which register the operation takes place.
Register Select (SR7–SR0)
These bits are set up to point to the required starting address.
A(S)
A(S) = NO-ACKNOWLEDGE BY SLAVE
A(M) = NO-ACKNOWLEDGE BY MASTER
A(S)
DATA
DATA
A(M)
ADV7304A/ADV7305A
A(S) P
DATA
A(M)
P