ADV7321KSTZ Analog Devices Inc, ADV7321KSTZ Datasheet - Page 45

• Manufacturer Part Number: ADV7321KSTZ
• Description: IC VID ENC 6-12BIT DAC'S 64LQFP
• Manufacturer: Analog Devices Inc
• Type: Video Encoderr

Specifications of ADV7321KSTZ

• Applications: EVD, DVD, SD/PS/HDTV
• Voltage - Supply, Analog: 2.5V
• Voltage - Supply, Digital: 2.5V
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Input Format: Digital
• Output Format: Analog
• Supply Voltage Range: 2.375V To 2.625V
• Operating Temperature Range: 0°C To +70°C
• Tv / Video Case Style: LQFP
• No. Of Pins: 64
• Msl: MSL 1 - Unlimited
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

RESET SEQUENCE
A reset is activated with a high-to-low transition on the RESET
pin (Pin 33) according to the timing specifications, and the
ADV7320/ADV7321 revert to the default output configuration.
Figure 63 illustrates the RESET timing sequence.
SD VCR FF/RW SYNC
[Subaddress 0x42, Bit 5]
In DVD record applications where the encoder is used with a
decoder, the VCR FF/RW sync control bit [Subaddress 0x42,
Bit 5] can be used for nonstandard input video, that is, in fast
forward or rewind modes.
DIGITAL TIMING
PIXEL DATA
RESET
A, B, C
VALID
DACs
XXXXXX
XXXXXX
DIGITAL TIMING SIGNALS SUPPRESSED
Figure 63. RESET Timing Sequence
Rev. A | Page 45 of 88
OFF
In fast forward mode, the sync information at the start of a new
field in the incoming video usually occurs before the correct
number of lines/fields are reached; in rewind mode, this sync
signal usually occurs after the total number of lines/fields are
reached. Conventionally this means that the output video will
have corrupted field signals because one signal is generated by
the incoming video and another is generated when the internal
lines/field counters reach the end of a field.
When the VCR FF/RW sync control is enabled, the line/field
counters are updated according to the incoming VSYNC signal,
and the analog output matches the incoming VSYNC signal.
This control is available in all slave timing modes except Slave
Mode 0.
ADV7320/ADV7321
TIMING ACTIVE
VALID VIDEO