MB86391 Datasheet, PDF (49/69 Pages) Fujitsu Component Limited. – MPEG2 1chip Audio/Video Encoder

FUJITSU LIMITED
Proprietary and Confidential
4.2 Recommended Operating Conditions
4.2.1 Recommended Operating Conditions
Table 4.2.1: Recommended operating conditions
Item
Supply voltage
H−level
input
3.3V
voltage
L−level
input
voltage
3.3V
Operating temperature
Symbol
VDDI
VDDE
AVDD
VIH
VIL
Ta
Min.
1.65
3.0
1.65
2.0
−0.3
-20
Ratings
Typical
1.8
3.3
1.8
−
Unit
Max.
1.95
3.6
V
1.95
VDDE+0.3 V
−
0.8
V
25
85
°C
4.2.2 Precautions When Connecting the Power
• Although VDDI, VDDE and AVDD can be turned on and off in any order, Fujitsu recommends
the following order:
Turning on:VDDI, AVDD(internal) → VDDE(external) → signals
Turning off:signals → VDDE(external) → VDDI, AVDD(internal)
Do not keep VDDE (external) alone pressed (for more than a few seconds) with VDDI and
AVDD (internal) disconnected.
• The following power supply sequence applies to 5V tolerant I/O
Before turning on the device, never input 5V input signals (observe the maximum ratings at
all times). Otherwise, you might destroy the device.
• After turning on the power, keep the PLLTHR pin set to the L level for more than 2µs. Next,
set the PLLTHR pin to the H level and then input the L level to the XRESET signal for more
than 300µs.
MB86391
Product Specification
Rev. 1.1
12, November 2001
45