DS90UB914ATRHSTQ1 Datasheet, PDF (43/68 Pages) Texas Instruments – DS90UB913A-Q1/DS90UB914A-Q1 25 to100 MHz 10/12-Bit

www.ti.com
Image
Sensor
Camera Unit
DS90UB913A-Q1, DS90UB914A-Q1
SNLS443A – MAY 2013 – REVISED JUNE 2013
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 27. DS90UB913A-Q1/914A-Q1 Operation in PCLK mode
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(1.8V, not V_DDIO) with a 10 kΩ
resistor and a pull down resistor R_MODE) of the recommended value to set the modes shown in Figure 28. The
recommended maximum resistor tolerance is 1%.
1.8V
10k
MODE
R_MODE
Serializer
Figure 28. MODE Pin configuration on DS90UB913A-Q1
Table 7. DS90UB913A-Q1 Serializer MODE Resistor Value
DS90UB913A-Q1 Serializer MODE Resistor Value
Mode Select
PCLK from imager mode
External Oscillator mode
R_MODE Resistor Value
100kΩ
4.7kΩ
MODE Pin on Deserializer
The mode pin on the Deserializer can be used to configure the device to work in the 12-bit low frequency mode,
12-bit high frequency mode or the 10-bit mode of operation. Internally, the DS90UB913A/914A chipset operates
in a divide-by-1 mode in the 12-bit low frequency mode, divide-by-2 mode in the 10-bit mode and a divide-by-1.5
mode in the 12-bit high frequency mode. The pin must be pulled to V_DD (1.8V, not V_DDIO) with a 10 kΩ resistor
and a pull down resistor ®_MODE) of the recommended value to set the different modes in the Deserializer as
mentioned in Table 8. The Deserializer automatically configures the Serializer to correct mode via the back-
channel. The recommended maximum resistor tolerance is 1%.
.
Copyright © 2013, Texas Instruments Incorporated
Submit Documentation Feedback
43
Product Folder Links: DS90UB913A-Q1 DS90UB914A-Q1