ADV7180BCPZ Analog Devices Inc, ADV7180BCPZ Datasheet - Page 36

• Manufacturer Part Number: ADV7180BCPZ
• Description: IC VIDEO DECODER SDTV 40-LFCSP
• Manufacturer: Analog Devices Inc
• Type: Video Decoderr

Specifications of ADV7180BCPZ

• Design Resources: Low Cost Differential Video Receiver Using ADA4851 Amplifier and ADV7180 Video Decoder (CN0060) Low Cost Video Multiplexer for Video Switching Using ADA4853-2 Op Amp with Disable Function (CN0076)
• Applications: Digital Cameras, Mobile Phones, Portable Video
• Voltage - Supply, Analog: 1.71 V ~ 1.89 V
• Voltage - Supply, Digital: 1.65 V ~ 2 V
• Mounting Type: Surface Mount
• Package / Case: 40-LFCSP
• Resolution (bits): 10bit
• Input Format: Analog
• Output Format: Digital
• Adc Sample Rate: 57.27MSPS
• Power Dissipation Pd: 250mW
• No. Of Input Channels: 3
• Supply Voltage Range: 1.71V To 1.89V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-ADV7180LQEBZ - BOARD EVALUATION ADV7180EVAL-ADV7180LFEBZ - BOARD EVAL FOR ADV7180 LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

ADV7180
BETACAM, Enable Betacam Levels, Address 0x01[5]
If YPrPb data is routed through the ADV7180, the automatic
gain control modes can target different video input levels, as
outlined in Table 44. The BETACAM bit is valid only if the
input mode is YPrPb (component). The BETACAM bit sets the
target value for AGC operation.
A review of the following sections is useful:
•
•
The AGC algorithms adjust the levels based on the setting of
the BETACAM bit (see Table 42).
Table 42. BETACAM Function
BETACAM
0 (default)
1
Table 43. CAGC Function
CAGC[1:0]
00
01
10 (default)
11
Table 44. BETACAM Levels
Name
Y
Pb and Pr
Sync Depth
The MAN_MUX_EN, Manual Input Muxing Enable,
Address 0xC4[7] section for how component video
(YPrPb) can be routed through the ADV7180.
The Video Standard Selection section to select the various
standards, for example, with and without pedestal.
BETACAM (mV)
0 to +714 (including 7.5% pedestal)
−467 to +467
+286
Description
Assuming YPrPb is selected as input format:
Selecting PAL with pedestal selects MII.
Selecting PAL without pedestal selects SMPTE.
Selecting NTSC with pedestal selects MII.
Selecting NTSC without pedestal selects SMPTE.
Assuming YPrPb is selected as input format:
Selecting PAL with pedestal selects BETACAM.
Selecting PAL without pedestal selects BETACAM variant.
Selecting NTSC with pedestal selects BETACAM.
Selecting NTSC without pedestal selects BETACAM variant.
Description
Manual fixed gain (use CMG[11:0])
Luma gain used for chroma
Automatic gain (based on color burst)
Freeze chroma gain
BETACAM Variant (mV)
0 to +714
+286
−505 to +505
Rev. F | Page 36 of 116
PW_UPD, Peak White Update, Address 0x2B[0]
The peak white and average video algorithms determine the
gain based on measurements taken from the active video. The
PW_UPD bit determines the rate of gain change. LAGC[2:0] must
be set to the appropriate mode to enable the peak white or average
video mode in the first place. For more information, see the
LAGC[2:0], Luma Automatic Gain Control,
Address 0x2C[6:4] section.
Setting PW_UPD to 0 updates the gain once per video line.
Setting PW_UPD to 1 (default) updates the gain once per field.
Chroma Gain
CAGC[1:0], Chroma Automatic Gain Control,
Address 0x2C[1:0]
The two bits of color automatic gain control mode select the
basic mode of operation for automatic gain control in the
chroma path.
SMPTE (mV)
0 to +700
−350 to +350
+300
0 to +700 (including 7.5% pedestal)
+300
MII (mV)
−324 to +324