MAX9665ETP+ Maxim Integrated, MAX9665ETP+ Datasheet - Page 8

• Manufacturer Part Number: MAX9665ETP+
• Description: LCD Gamma Buffers 6/8/10-Channel 10-Bit Nonvolatile Programmable Gamma and VCOM Reference Voltages
• Manufacturer: Maxim Integrated

6/8/10-Channel, 10-Bit, Nonvolatile Programmable
Gamma and VCOM Reference Voltages
(V
otherwise noted. Typical values are at T
8
AVDD
-0.05
-0.10
-0.15
-0.20
-0.25
0.25
0.20
0.15
0.10
0.05
_______________________________________________________________________________________
0
0
= V
-10
-20
-30
-40
-50
-60
-70
-80
-90
V
VCOM
REF
0
128
10k
REF
DIFFERENTIAL NONLINEARITY
= 5V
REF POWER-SUPPLY REJECTION RATIO
OF GAMMA OUTPUTS vs. FREQUENCY
GAMMA LOAD TRANSIENT (±100mA)
256 384
= 15.7V, V
vs. DAC CODE
V
DAC CODE
REF
100k
FREQUENCY (Hz)
512 640
= 15.7V ± 100mV
2µs/div
DVDD
768
= 3.3V, V
1M
P-P
896
MAX9665 toc20
1024
A
= +25°C.) (Note 2)
GND
10M
GAMMA OUTPUT0
500mV/div
GAMMA LOAD CURRENT
100mA/div
= 0V, VCOM connected to FB, CTL = DVDD/2, no load, T
Typical Operating Characteristics (continued)
-10
-20
-30
-40
-50
-60
-70
-80
0
10k
OF GAMMA OUTPUTS vs. FREQUENCY
POWER-SUPPLY REJECTION RATIO
V
AVDD
100k
= V
FREQUENCY (Hz)
REF
= 15.7V ± 100mV
1M
-10
-20
-30
-40
-50
-60
-70
-80
P-P
0
10k
REF POWER-SUPPLY REJECTION RATIO
VCOM LOAD TRANSIENT (±500mA)
10M
OF VCOM vs. FREQUENCY
V
REF
100k
FREQUENCY (Hz)
= 15.7V ± 100mV
-10
-20
-30
-40
-50
-60
-70
0
2µs/div
10k
POWER-SUPPLY REJECTION RATIO
1M
V
OF VCOM vs. FREQUENCY
AVDD
P-P
A
= -40°C to +85°C, unless
100k
= V
MAX9665 toc21
FREQUENCY (Hz)
REF
= 15.7V ± 100mV
10M
VCOM OUTPUT
500mV/div
VCOM LOAD CURRENT
200mA/div
1M
P-P
10M