Rainbow Electronics MAX9258 - Manual (Page 12)

MAX9257/MAX9258
12 ______________________________________________________________________________________
Fully Programmable Serializer/Deserializer
with UART/I
2
C Control Channel
MAX9258 Pin Description (continued)
PIN NAME FUNCTION
16 TX LVCMOS/LVTTL Control Channel UART Input. TX is internally pulled up to V CCOUT .
17 LOCK
Open-Drain Lock Output. LOCK asserts high to indicate PLLs are locked with correct serial-word
boundary alignment. LOCK asserts low to indicate PLLs are not locked or incorrect serial-word
boundary alignment was detected. Pull up to V
CCOUT with a 1k Ω resistor.
18 PCLK_OUT LVCMOS/LVTTL Recovered Clock Output
19 VSYNC_OUT LVCMOS/LVTTL Vertical SYNC Output
20 HSYNC_OUT LVCMOS/LVTTL Horizontal SYNC Output
21, 28–35,
40–46
DOUT[15:0] LVCMOS/LVTTL Data Outputs
22, 39 V CCOUT
Output Supply Voltage. V CCOUT is the supply for all output buffers. Bypass V CCOUT to GND OUT with
0.1µF and 0.001µF capacitors in parallel as close as possible to the device with the smallest value
capacitor closest to V
CCOUT .
23, 38, 48 GND OUT Output Supply Ground
26 V CCSPLL
Spread-Spectrum PLL Supply Voltage. Bypass V CCSPLL to GND SPLL with 0.1µF and 0.001µF
capacitors in parallel as close as possible to the device with the smallest value capacitor closest to
V
CCSPLL
.
27 GND SPLL SPLL Ground
47 CCEN
LVCMOS/LVTTL Control Channel Enabled Output. CCEN asserts high to indicate that control
channel is enabled.