TB31356AFL TOSHIBA Semiconductor CORPORATION, TB31356AFL Datasheet - Page 4

• Manufacturer Part Number: TB31356AFL
• Description: 1.8ghz,600mhz Dual-pll Frequency Synthesizer
• Manufacturer: TOSHIBA Semiconductor CORPORATION

DESCRIPTION OF FUNCTION AND OPERATION
(1) Serial data control
(2)
(3) Serial data input timing
(4) Serial data groups and group code
This specification is design target. It is subject to change without notice
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TB31356AFL operates according to serial data program. Serial data is input from the clock (CLK),
data (DATA), and strobe (STB) pin.
sequentially. When all the data is sent, set the strobe pin to high. At this rising edge,
data is stored in latches depending on the control contents. At the same time as data is
stored, control starts.
errors by noise, etc.
one another. Each group is identified by three-bit group code attached at the data end.
At the rising edge of each clock pulse, data is sent to the internal shift register from the LSB
The CLK, DATA, and STB pin contain the schmitt trigger circuit to prevent the data
At power on, send the option control data before any other divider data.
The IC has control divided into five groups so that they may be controlled independent of
Entry of serial data
preceding one
Bit before
CLK
DATA
STB
0
0
0
0
1
TENTATIVE
Preceding bit
0
1
0
1
0
=>0.1 s
Last bit
0
0
1
1
0
=>0.04 s
=>0.02 s
PLL1 programmable divider (FIN1) data
PLL2 programmable divider (FIN2) data
PLL1 reference divider (XIN) data
PLL2 reference divider (XIN) data
Option Control
=>0.04 s
=>0.02 s
Control contents
.
=>0.04 s
Nov. 27 2002 PAGE 4
=>0.04 s
TB31356AFL