Typical Connections
Figure 4 shows a detailed MT9V135 device configuration. For low-noise operation, the
MT9V135 requires separate analog and digital power supplies. Incoming digital and
analog ground conductors can be tied together next to the die.
Power supply voltages V
AA
(the primary analog voltage) and VAAPIX (the main voltage to
the pixel array) must be tied together to avoid current loss.
Both power supply rails should be decoupled from ground using capacitors.
The MT9V135 requires a single external voltage supply level.
Figure 4:
Typical Configuration (without use of overlay)
V
DD
V
DD
_
DAC
V
DD
_
PLL
Power
Power Power
V
AA AND
VAAPIX
5
Power
1.5KΩ
2
1.5KΩ
2
V
DD
V
DD
_
DAC
V
DD
_
PLL
V
AA
VAAPIX
DAC_POS
DAC_NEG
75Ω Terminated Receiver
S
ADDR
STANDBY from
Controller
or Digital GND
Master Clock
Two-Wire
Serial Interface
STANDBY
1
CLKIN
S
DATA
SCLK
LVDS_ENABLE
DIN_CLK
DIN[7:0]
HORIZ_FLIP
NTSC_PAL_SELECT
1KΩ
PEDESTAL
RSVD
RESET#
10µF
D
GND
A
GND
DAC_REF
2.8KΩ
LVDS_POS
LVDS_NEG
D
OUT
[7:0]
D
OUT
_LSB[1:0]
PIXCLK
LINE_VALID
FRAME_VALID
D
GND
A
GND
V
DD
VAAPIX
V
AA
0.1µF
1µF
0.1µF
1µF
0.1µF
1µF
D
GND
A
GND
A
GND
Notes:
1. MT9V135 STANDBY can be connected to customer’s ASIC controller directly or to Digital
GND, depending on the controller’s capability.
2. A 1.5KΩ resistor value is recommended,but may be greater for slower (for example, 100Kb)
two-wire speed.
3. LVDS_ENABLE should be tied HIGH if LVDS is to be used.
4. Pull down DAC_REFwith a 2.8K ohm resistor for 1.0V peak-to-peak video output. For a 1.4V
peak-to-peak video output, change the video resistor to 2.4K ohms.
5. V
AA
and VAAPIX must be tied to the same potential for proper operation.
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75Ω
75Ω
MICRON [ MICRON TECHNOLOGY ]
