adv7344 Analog Devices, Inc., adv7344 Datasheet - Page 45

• Manufacturer Part Number: adv7344
• Description: Multiformat Video Encoder Six 14-bit Noise Shaped Video Dacs
• Manufacturer: Analog Devices, Inc.

ENHANCED DEFINITION/HIGH DEFINITION ONLY
Subaddress 0x01, Bits[6:4] = 001 or 010
Enhanced definition (ED) or high definition (HD) YCrCb data
can be input in either 4:2:2 or 4:4:4 formats. If desired, dual data
rate (DDR) pixel data inputs can be employed (4:2:2 format only).
Enhanced definition (ED) or high definition (HD) RGB data
can be input in 4:4:4 format (single data rate only).
The clock signal must be provided on the CLKIN_A pin. Input
synchronization signals are provided on the P_HSYNC ,
P_VSYNC and P_BLANK pins.
16-/20-Bit 4:2:2 YCrCb Mode (SDR)
Subaddress 0x35, Bit 1 = 0; Subaddress 0x33, Bit 6 = 1
In 16-/20-bit 4:2:2 YCrCb input mode, the Y pixel data is input on
Pin Y9 to Pin Y2/Y0, with Y0 being the LSB in 20-bit input mode.
The CrCb pixel data is input on Pin C9 to Pin C2/C0, with C0
being the LSB in 20-bit input mode.
8-/10-Bit 4:2:2 YCrCb Mode (DDR)
Subaddress 0x35, Bit 1 = 0; Subaddress 0x33, Bit 6 = 1
In 8-/10-bit DDR 4:2:2 YCrCb input mode, the Y pixel data is
input on Pin Y9 to Pin Y2/Y0 upon either the rising or falling
edge of CLKIN_A. Y0 is the LSB in 10-bit input mode.
The CrCb pixel data is also input on Pin Y9 to Pin Y2/Y0 upon the
opposite edge of CLKIN_A. Y0 is the LSB in 10-bit input mode.
Whether the Y data is clocked in upon the rising or falling edge
of CLKIN_A is determined by Subaddress 0x01, Bits[2:1] (see
Figure 52 and Figure 53).
24-/30-Bit 4:4:4 YCrCb Mode
Subaddress 0x35, Bit 1 = 0; Subaddress 0x33, Bit 6 = 0
In 24-/30-bit 4:4:4 YCrCb input mode, the Y pixel data is input on
Pin Y9 to Pin Y2/Y0, with Y0 being the LSB in 30-bit input mode.
The Cr pixel data is input on Pin S9 to Pin S2/S0, with S0 being
the LSB in 30-bit input mode.
The Cb pixel data is input on Pin C9 to Pin C2/C0, with C0
being the LSB in 30-bit input mode.
NOTES
1. SUBADDRESS 0x01 [2:1] SHOULD BE SET TO 11 IN THIS CASE.
CLKIN_ A
NOTES
1. SUBADDRESS 0x01 [2:1] SHOULD BE SET TO 00 IN THIS CASE.
CLKIN_A
Y[9:0]
Y[9:0]
Figure 52. ED/HD-DDR Input Sequence (EAV/SAV)—Option A
Figure 53. ED/HD-DDR Input Sequence (EAV/SAV)—Option B
3FF
3FF
00
00
00
00
XY
XY
Cb0
Y0
Cb0
Y0
Cr0
Y1
Cr0
Y1
Rev. 0 | Page 45 of 88
24-/30-Bit 4:4:4 RGB Mode
Subaddress 0x35, Bit 1 = 1
In 24-/30-bit 4:4:4 RGB input mode, the red pixel data is input
on Pin S9 to Pin S2/S0, the green pixel data is input on Pin Y9 to
Pin Y2/Y0, and the blue pixel data is input on Pin C9 to Pin C2/C0.
S0, Y0, and C0 are the respective bus LSBs in 30-bit input mode.
SIMULTANEOUS STANDARD DEFINITION AND
ENHANCED DEFINITION/HIGH DEFINITION
Subaddress 0x01, Bits[6:4] = 011 or 100
The ADV7344 is able to simultaneously process SD 4:2:2 YCrCb
data and ED/HD 4:2:2 YCrCb data. The 27 MHz SD clock
signal must be provided on the CLKIN_A pin. The ED/HD
clock signal must be provided on the CLKIN_B pin. SD input
synchronization signals are provided on the S_HSYNC and
S_VSYNC pins. ED/HD input synchronization signals are
provided on the P_HSYNC , P_VSYNC and P_BLANK pins.
SD 8-/10-Bit 4:2:2 YCrCb and ED/HD-SDR 16-/20-Bit
4:2:2 YCrCb
The SD 8-/10-bit 4:2:2 YCrCb pixel data is input on Pin S9 to
Pin S2/S0, with S0 being the LSB in 10-bit input mode.
The ED/HD 16-/20-bit 4:2:2 Y pixel data is input on Pin Y9 to
Pin Y2/Y0, with Y0 being the LSB in 20-bit input mode.
The ED/HD 16-/20-bit 4:2:2 CrCb pixel data is input on Pin C9
to Pin C2/C0, with C0 being the LSB in 20-bit input mode.
SD 8-/10-Bit 4:2:2 YCrCb and ED/HD-DDR 8-/10-Bit
4:2:2 YCrCb
The SD 8-/10-bit 4:2:2 YCrCb pixel data is input on Pin S9 to
Pin S2/S0, with S0 being the LSB in 10-bit input mode.
The ED/HD-DDR 8-/10-bit 4:2:2 Y pixel data is input on Pin Y9
to Pin Y2/Y0 upon the rising or falling edge of CLKIN_B. Y0 is
the LSB in 10-bit input mode.
The ED/HD-DDR 8-/10-bit 4:2:2 CrCb pixel data is also input
on Pin Y9 to Pin Y2/Y0 upon the opposite edge of CLKIN_B.
Y0 is the LSB in 10-bit input mode.
Whether the ED/HD Y data is clocked in upon the rising or
falling edge of CLKIN_B is determined by Subaddress 0x01,
Bits[2:1] (See the input sequence shown in Figure 52 and
Figure 53).
INTERLACED TO
PROGRESSIVE
DECODER
Figure 54. ED/HD Only Example Application
MPEG2
YCrCb
Cb
Cr
Y
10
10
10
3
CLKIN_ A
C[9:0]
S[9:0]
Y[9:0]
P_HSYNC,
P_BLANK
P_VSYNC,
ADV7344
ADV7344