W83194BR-703 Просмотр технического описания (PDF) - Winbond
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W83194BR-703 Datasheet PDF : 28 Pages
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W83194BR-703/W83194BG-703
5.3 Fixed Frequency Outputs
PIN
PIN NAME
TYPE
DESCRIPTION
REF0
OUT 14.318MHz output.
2
FS0&
INtd120k
Latched input for FS0 at initial power up for H/W selecting
the output frequency. This is internal 120K pull down.
REF1
3
FS1&
4
REF2
OUT
INtd120k
OUT
14.318MHz output.
Latched input for FS1 at initial power up for H/W selecting
the output frequency. This is internal 120K pull down.
14.318MHz output.
12_48MHz
OUT 12 MHz (default) or 48MHz clock output.
27
SEL12_48MHz#
*
INtp120k
Latched input at initial power up for 12_48MHz output type
selecting, SEL12_48MHz= 0 is 48 MHz, SEL12_48MHz=1
is 12MHZ; This is internal 120KΩ pull up.
24_48MHz
OUT 24MHz or 48MHz (default) clock output.
26
SEL24_48#&
Latched input at initial power up for 24_48MHz output type
INtd120k selecting, SEL24_48MHz= 0 is 48 MHz, SEL24_48MHz=1
is 24MHZ; This is internal 120KΩ pull down.
5.4 I2C Control Interface
PIN
PIN NAME
33 SDATA*
12 SCLK*
TYPE
I/OD
IN
DESCRIPTION
Serial data of I2C 2-wire control interface with internal pull-
up resistor.
Serial clock of I2C 2-wire control interface with internal pull-
up resistor.
5.5 Power Management Pins
PIN
PIN NAME
TYPE
DESCRIPTION
Deciding the reference current for the SRCT/C pairs. The
pin was connected to the precision resistor tied to ground to
decide the appropriate current. The table is show as follows.
34 IREF
OUT
MULTSEL Board Target Reference R, Output Ioh @
(PIN 11) Trace/ Term Iref=VDD/(3*Rr Current Z
Z
)
1 50 Ohms
R=475 1%
Ioh= 0.7V
Iref=2.32mA 6*Iref @ 50
0 50 Ohms
R=221 1%
Iref=5mA
Ioh= 1.0V
4*Iref @ 50
Publication Release Date: Jan. 2006
-5-
Revision 0.8
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