ADV7174KCPZ Analog Devices Inc, ADV7174KCPZ Datasheet - Page 35

• Manufacturer Part Number: ADV7174KCPZ
• Manufacturer: Analog Devices Inc

Specifications of ADV7174KCPZ

• Adc/dac Resolution: 10b
• Screening Level: Commercial
• Package Type: LFCSP EP
• Pin Count: 40
• Lead Free Status / RoHS Status: Compliant

SUBCARRIER FREQUENCY REGISTERS 3–0
Bits:
Address:
These 8-bit-wide registers are used to set up the subcarrier frequency. The value of these registers is calculated by using the following
equation:
For example, in NTSC mode,
Note that on power-up, F
Program as
F
F
F
F
Figure 45 shows how the frequency is set up by the four registers.
SUBCARRIER PHASE REGISTER
Bits:
Address:
This 8-bit-wide register is used to set up the subcarrier phase. Each bit represents 1.41°. For normal operation, this register is set to 00H.
CLOSED CAPTIONING EVEN FIELD DATA REGISTERS 1–0
Bits:
Address:
These 8-bit-wide registers are used to set up the closed captioning extended data bytes on even fields. Figure 46 shows how the high and
low bytes are set up in the registers.
SC
SC
SC
SC
Register 0: 1EH
Register 2: 7CH
Register 3: F0H
Register 4: 21H
* Rounded to the nearest integer.
Subcarrier
No.
of
Subcarrie
No.
Frequency
of
FSC3–FSC0
SR4–SR00 = 09H–0CH
FP7–FP0
SR4–SR0 = 0DH
CED15–CED0
SR4–SR0 = 0EH–0FH
27
r
MHz
Frequency
SC
Value
Register 0 is set to 16h. A value of 1E as derived above is recommended.
Clock
=
Values
Cycles
227
1716
SUBCARRIER
SUBCARRIER
SUBCARRIER
SUBCARRIER
FREQUENCY
FREQUENCY
FREQUENCY
FREQUENCY
BYTE 0
5 .
BYTE 1
in
in
×
REG 3
REG 2
REG 1
REG 0
2
One
One
32
CED7
=
Figure 46. Closed Captioning Extended Data Register
Video
CED15
Line
569408542
FSC23
FSC15
FSC31
FSC7
CED6
of
Figure 45. Subcarrier Frequency Register
Line
CED14 CED13
Video
FSC22 FSC21
FSC14 FSC13
FSC30 FSC29
FSC6
CED5
d
Rev. B | Page 35 of 52
=
Line
FSC5
21
CED4
F
×
CED12
07
2
FSC20
FSC12
FSC28
FSC4
32
C
CED3
1
*
Eh
CED11
FSC19
FSC11
FSC27
FSC3
CED2
CED10
FSC18
FSC10
FSC26
FSC2
CED1
CED9
FSC17
FSC25
FSC9
FSC1
CED0
CED8
FSC24
FSC16
FSC0
FSC8
ADV7174/ADV7179