ADV7180
Pin No.
Mnemonic
Type Function
O
Subcarrier Frequency Lock. This pin contains a serial output stream that can be used to lock
9
SFL
the subcarrier frequency when this decoder is connected to any Analog Devices digital
video encoder.
20
21
LLC
O
This is a line-locked output clock for the pixel data output by the ADV7180. It is nominally
27 MHz, but varies up or down according to video line length.
This pin should be connected to the 28.6363 MHz crystal or left as a no connect if an
external 1.8 V, 28.6363 MHz clock oscillator source is used to clock the ADV7180. In crystal
mode, the crystal must be a fundamental crystal.
This is the input pin for the 28.6363 MHz crystal, or this pin can be overdriven by an external
1.8 V, 28.6363 MHz clock oscillator source. In crystal mode, the crystal must be a
fundamental crystal.
XTAL1
O
I
22
XTAL
12, 13, 55, 56
34
GPO0 to GPO3
TEST_0
O
I
General-Purpose Outputs. These pins can be configured via I2C to allow control of external
devices.
This pin must be tied to DGND.
Rev. A | Page 14 of 113
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