AD71028JST AD [Analog Devices], AD71028JST Datasheet - Page 6

• Manufacturer Part Number: AD71028JST
• Description: Dual Digital BTSC Encoder with Integrated DAC
• Manufacturer: AD [Analog Devices]

AD71028
PIN CONFIGURATION AND FUNCTIONAL DESCRIPTIONS
Table 9. Pin Function Descriptions
Pin No.
1
2
3
4, 5, 9, 10, 26, 27, 39
6, 16, 44
7, 13, 17, 45
8
11
12
14
15
18
19
20
21
22
23
24
25
28, 32, 36
29
30
31, 33
34
35
37
38
Mnemonic
DIV2_PA
DIV1_PB
DIV2_PB
NC
DGND
DVDD
ODVDD
COUT
CDATA
CCLK
CLATCH
RESETB
SDATA_PA
BCLK_PA
LRCLK_PA
SDATA_PB
BCLK_PB
LRCLK_PB
DOUBLE
AGND
OUTA–
OUTA+
AVDD
OUTB+
OUTB–
REFCAP
FILTCAP
Input/Output
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
IN
IN
DIV2_PA
DIV1_PB
DIV2_PB
ODVDD
CDATA
DGND
DVDD
COUT
NC
NC
NC
NC
Figure 2. 48-Lead Low Profile Quad Flat Pack (LQFP)
10
11
12
1
2
3
4
5
6
7
8
9
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
Description
CLK27_PA clock (Pin 40) Divided by 1125
PLL_PB Clock (Pin 46) Divided by 512 (DOUBLE = 1) or 1024 (DOUBLE = 0)
CLK27_PB Clock (Pin 41) Divided by 1125
No Connection
Digital Ground
Digital Supply for DSP Core
Digital Supply for Output Buffers
SPI Readback
SPI Control Data Input
SPI Serial Bit Clock
SPI Control Latch Signal
Reset Signal for Both Processors, Active Low
Data Input to Processor A
Bit Clock Signal for Serial Data Input to Processor A
Left/Right Framing Signal for Data Input to Processor A
Data Input to Processor B
Bit Clock Signal for Serial Data Input to Processor B
Left/Right Framing Signal for Data Input to Processor B
Enables Internal Clock Doubler for 12.288 MHz Input (Both Processors)
Analog Ground
Negative Analog Output, Processor A
Positive Analog Output, Processor A
Analog Supply
Positive Analog Output, Processor B
Negative Analog Output, Processor B
Connection Point for 10 µF VREF Filter Capacitor
Connection for Noise Reduction Capacitor
NC = NO CONNECT
Rev. 0 | Page 6 of 20
(Not to Scale)
AD71028
TOP VIEW
36
35
34
33
32
31
30
29
28
27
26
25
AGND
OUTB–
OUTB+
AVDD
AGND
AVDD
OUTA+
OUTA–
AGND
NC
NC
DOUBLE