DS90UB913A-Q1 Datasheet, PDF (21/51 Pages) Texas Instruments – 25-MHz to 100-MHz 10/12-Bit FPD-Link III Serializer

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Device Functional Modes (continued)
DS90UB913A-Q1
SNLS443C – MAY 2013 – REVISED APRIL 2016
Image
Sensor
Camera Unit
Serializer
Camera Data
10 or 12
YUV
HSYNC
VSYNC
SDA
SCL
DIN[11:0] or
DIN[9:0]
FV,LV
SDA
SCL
4
GPO
GPO[3:0]
PLL
Pixel Clock _PCLK
Deserializer
FPD-Link III
DOUT+
RIN0+
DOUT-
RIN0-
Bi-Directional
Back Channel
RIN1+
ROUT[11:0]
or
ROUT[9:0]
FV, LV
PCLK
Camera Data
10 or 12
YUV
HSYNC
VSYNC
Pixel Clock
RIN1-
GPIO[3:0]
SDA
SCL
4
GPIO
SDA
SCL
ECU Module
Microcontroller
Ext.
Oscillator
Figure 16. DS90UB913A-Q1/914A-Q1 Operation in PCLK mode
8.4.3 MODE Pin on Serializer
The MODE pin on the Serializer can be configured to select if the DS90UB913A-Q1 device is to be operated
from the external oscillator or the PCLK from the imager. The pin must be pulled to V_DD(1.8 V, not V_DDIO) with a
10-kΩ resistor and a pulldown resistor R_MODE) of the recommended value to set the modes shown in Figure 17.
The recommended maximum resistor tolerance is 1%.
1.8V
10k
MODE
R_MODE
Serializer
Figure 17. MODE Pin Configuration on DS90UB913A-Q1
Table 1. DS90UB913A-Q1 Serializer
MODE Resistor Value
DS90UB913A-Q1 SERIALIZER MODE RESISTOR VALUE
MODE SELECT
PCLK from imager mode
R_MODE RESISTOR VALUE (kΩ)
100
External Oscillator mode
4.7
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