ANALOG OUTPUTS

The output voltage amplifiers have an output range

of 1.685V to 3.315V. The 1.685V corresponds to

the binary code Ø (R/C = 1) or to the 2’s comple-

ment code -128 (R/C = 0). The 3.315V corresponds

to the maximum value on the digital code 255 if

R/C = 1, +127 if R/C = 0.

The STV8438CV provides a step of 6.39mV per

LSB. Using the analog input signal (COM = 0), the

output amplifier has a gain of 2.

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

VCC

Supply Voltage

8

V

Ptot

Power Dissipation

1.8

W

Toper

Operating Temperature

-40 to 85

oC

Tstg

Storage Temperature

-55 to 150

oC

DC ELECTRICAL CHARACTERISTICS (temperature 0 to 70

oC, VCC

±5%)

Symbol

Parameter

Min.

Typ.

Max.

Unit

VCC

Supply Voltage

4.75

5

5.25

V

ICC

Supply Current

170

mA

Resolution

8

Bit

VOUTF

Full Scale Output Voltage

3.315

V

VOUTZ

Zero Scale Output Voltage

1.685

V

DL

Differential Linearity Error

±0.5

LSB

IL

Integral Linearity Error

1

LSB

Gain Conversion Error between RGB

±2

%

PD

Power Dissipation

850

mW

AC ELECTRICAL CHARACTERISTICS (temperature 0 to 70

oC, VCC ±5%)

Symbol

Parameter

Min.

Typ.

Max.

Unit

ANALOG OUTPUTS

Maximum Data Conversion Rate

70

Msps

tS

Settling Time

Figure 1

Figure 2

14

28.5

ns

Monotonicity

Guaranteed

Glitch Energy

80

pVS

tPD

Propagation Delay (Figures 1 and 2)

4

ns

Crosstalk between any Outputs (fCLK = 25MHz, input voltage 0.7VPP)50

dB

Crosstalk between any outputs when auxiliary analog inputs are

selected (fCLK = 25MHz, 0.7VPP)

50

dB

RLOAD

Output Load (AC coupled - see typical application diagram)

100

150

Ω

VOUT

Output Voltage Range (on 150

Ω AC coupled)

1.63

VPP

AUXILIARY ANALOG RGB INPUTS

tSW

Switching-time DAC/Analog Input (Figure 3)

5

ns

Black Level Clamp Error

±2.5

%

Crosstalk between any Outputs (f = 5MHz, input voltage 0.7VPP)50

dB

Crosstalk between RGB Analog Inputs and D/A Outputs

(f = 5MHz, input voltage 0.7VPP)

50

dB

STV8438CV

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