9397 750 14325 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet Rev. 03 — 9 December 2004 42 of 55
Philips Semiconductors
SAA7128H; SAA7129H
Digital video encoder
10. Characteristics
Table 81: Characteristics
V
DDD
= 3.0 V to 3.6 V; T
amb
=0
°
C to 70
°
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Supply
V
DDA
analog supply voltage 3.15 3.3 3.45 V
V
DDD
digital supply voltage 3.0 3.3 3.6 V
I
DDA
analog supply current
[1]
- 130 150 mA
I
DDD
digital supply current V
DDD
= 3.3 V
[1]
- 75 100 mA
Inputs: LLC1, RCV1, RCV2, MP7 to MP0, RTCI, SA, RESET_N and TTX
V
IL
LOW-level input voltage −0.5 - +0.8 V
V
IH
HIGH-level input voltage 2.0 - V
DDD
+ 0.3 V
I
LI
input leakage current - - 1 µA
C
i
input capacitance clocks - - 10 pF
data - - 8 pF
I/Os at high-impedance - - 8 pF
Outputs: RCV1, RCV2 and TTXRQ
V
OL
LOW-level output voltage I
OL
= 2 mA - - 0.4 V
V
OH
HIGH-level output voltage I
OH
= −2 mA 2.4 - - V
I
2
C-bus: SDA and SCL
V
IL
LOW-level input voltage −0.5 - +0.3V
DD(I2C)
V
V
IH
HIGH-level input voltage 0.7V
DD(I2C)
-V
DD(I2C)
+ 0.3 V
I
i
input current V
i
= LOW or HIGH −10 - +10 µA
V
OL
LOW-level output voltage (pin
SDA)
I
OL
= 3 mA - - 0.4 V
I
o
output current during acknowledge 3 - - mA
Clock timing: LLC1 and XCLK
T
LLC1
cycle time
[2]
34 - 41 ns
δ duty factor t
HIGH
/T
LLC1
LLC1 input 40 - 60 %
duty factor t
HIGH
/T
XCLK
XCLK output 50 %
(typical)
40 - 60 %
t
r
rise time
[2]
--5 ns
t
f
fall time
[2]
--6 ns
Input timing: RCV1, RCV2, MP7 to MP0, RTCI, SA and TTX
t
SU;DAT
input data set-up time 6 - - ns
t
HD;DAT
input data hold time 3 - - ns
Crystal oscillator
f
n
nominal frequency (usually
27 MHz)
3rd harmonic - - 30 MHz
∆f/f
n
permissible deviation of nominal
frequency
[3]
−50 × 10
−6
- +50 × 10
−6
Crystal specification
T
amb
ambient temperature 0 - 70 °C
