32579B

Electrical Specifications

9.3.4TV Interface

Table 9-17. TV DAC (4 Outputs: CVBS, SVY/TVR, SVC/TVB, CVBS/TVG)

Symbol

Parameter

Min

Max

Unit

Comments

 

 

 

 

 

 

RES

DAC Resolution

 

10

bits

 

 

 

 

 

 

 

VFR

Full range output voltage

 

182

IRE

TVRSET to GND = 1140Ω

 

 

 

 

 

RL = 37.5

 

 

 

 

 

Digital input = 3FFh

 

 

 

 

 

 

IFR

Full range output current

32.9

36.4

mA

TVRSET to GND = 1140Ω

 

 

 

 

 

RL = 37.5

 

 

 

 

 

Digital input = 3FFh

 

 

 

 

 

 

INL

Integral linearity error

 

±1.5

LSB

Note 1

 

 

 

 

 

 

DNL

Differential linearity error

 

±1.5

LSB

Note 2

 

 

 

 

 

 

TVREF

Internal reference voltage

1.17

1.29

V

Typically 1.235V

 

 

 

 

 

 

Gain Error

Gain Error

 

±5

%

 

 

 

 

 

 

 

DDM

DAC to DAC matching

 

2.5

%

 

 

 

 

 

 

 

ROUT

Output impedance

 

15

KΩ

 

COUT

Output capacitance

 

30

pF

IOUT = 0

K

DAC constant

 

32

 

Note 3

 

 

 

 

 

 

NT

Total Noise

 

-55

dB

Note 4

Note 1. The maximum difference between the ideal (straight) conversion line and the actual conversion curve. Note 2. The maximum difference between the ideal step size (1 LSB) and any actual step size.

Note 3. IOUT (mA) = K x TVREF (V) / TVRSET (Ω). Note 4. Not tested.

384

AMD Geode™ SC1200/SC1201 Processor Data Book

Page 384
Image 384
AMD SC1200, SC1201 manual Res, Ire, Lsb Dnl, LSB Tvref