IT66121FN View Datasheet(PDF) - ITE Tech. INC.
Part Name
Description
Manufacturer
IT66121FN Datasheet PDF : 39 Pages
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IT66121FN
DC Electrical Specification
Under functional operation conditions
Symbol
VIH
VIL
Parameter
Input low voltage1
Input high voltage1
Schmitt trigger negative
VT-
going threshold voltage1
Pin Type
For 1.8V OVDD
Min Typ Max
For 2.5V OVDD
Min Typ Max
For 3.3V OVDD
Min Typ Max
Unit
LVTTL
0.6
0.7
0.8 V
LVTTL 1.2
1.7
2.0
V
Schmitt 0.63 0.75
0.94 1.06
1.22 1.39
V
Schmitt trigger positive
VT+
going threshold voltage1 Schmitt
1.05 1.14
1.35 1.48
1.70 1.92 V
VOL
Output low voltage1
VOH
Output high voltage1
IIN
Input leakage current1
LVTTL
LVTTL 1.4
all
-10
0.4
2.1
+10 -10
0.4
2.9
+10 -10
0.4 V
V
+10 µA
Tri-state output leakage
IOZ
current1
all
-10
+10 -10
+10 -10
+10 µA
Serial programming
IOL
output sink current2
Schmitt
2.5
10 mA
Vswing
TMDS output
single-ended swing3
TMDS 400
600 400
600 400
600 mV
Single-ended standby
IOFF
output current3
TMDS
10
10
10 µA
Notes:
1. Guaranteed by I/O design.
2. The serial programming output ports are not real open-drain drivers. Sink current is guaranteed by I/O design
under the condition of driving the output pin with 0.2V. In a real serial programming environment, multiple devices
and pull-up resistors could be present on the same bus, rendering the effective pull-up resistance much lower
than that specified by the I2C Standard. When set at maximum current, the serial programming output ports of
IT66121 are capable of pulling down an effective pull-up resistance as low as 500Ω connected to 5V termination
voltage to the standard I2C VIL. When experiencing insufficient low level problem, try setting the current level to
higher than default. Refer to IT66121 Programming Guide for proper register setting.
3. Limits defined by HDMI standard
Audio AC Timing Specification
Under functional operation conditions
Symbol Parameter
FS_I2S I2S sample rate
FS_SPDIF S/PDIF sample rate
Conditions
Min Typ Max Unit
Up to 8 channels 32
192 kHz
2 channels
32
192 kHz
www.ite.com.tw
Nov-2011 Rev:0.99 15/39
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