13710-201 View Datasheet(PDF) - AMI Semiconductor
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Description
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13710-201 Datasheet PDF : 7 Pages
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AMERICAN MICROSYSTEMS, INC.
FS6070-01
1:4 HSTL to LVTTL Fanout Buffer IC
October 2000
Preliminary Information
1.0 Features
• Distributes one differential HSTL or HCSL reference
clock to two banks of two single-ended LVTTL out-
puts
• DIVSEL pin selects output divide-by-three or divide-
by-four of input frequency
• LVTTL output-enable control for each bank
• Input-to-output propagation delay: 5ns at 66.7MHz
• 16-pin (0.150″ ) SOIC and (4.4mm) TSSOP available
Figure 1: Pin Configuration
DIVSEL 1
VDD 2
VDD 3
HREF_P 4
HREF_N 5
VSS 6
VSS 7
OE_0 8
16 VDD
15 VDD
14 Q0_1
13 Q0_2
12 Q1_3
11 Q1_4
10 VSS
9 OE_1
Figure 2: Block Diagram
OE_0
HREF_P
HREF_N
OE_1
FS6070
VDD
Q0_1
Q0_2
Q1_3
Q1_4
VSS
Table 1: Clock Enable Configuration
CONTROL
OE_0 OE_1 DIVSEL
0
0
X
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
CLOCK OUTPUTS
Q0_1:2
Q1_3:4
Tristate
Tristate
Tristate
HREF ÷ 3
HREF ÷ 4
HREF ÷ 3
HREF ÷ 4
Tristate
HREF ÷ 3
HREF ÷ 4
Tristate
Tristate
HREF ÷ 3
HREF ÷ 4
Table 2: Pin Descriptions
Key: DI = Digital Input; DIU = Input with Internal Pull-Up; DID = Input with Internal Pull-Down;
DIO = Digital Input/Output; DO = Digital Output; P = Power/Ground; # = Active-low pin
PIN TYPE NAME
DESCRIPTION
4
AI
5
AI
14 DO
13 DO
12 DO
11 DO
1
DI
8
DI
9
DI
2, 3,
15,16
P
6,
7, 10
P
HREF_P
HREF_N
Q0_1
Q0_2
Q1_3
Q1_4
DIVSEL
OE_0
OE_1
HSTL input (true)
Differential
HSTL input (complement)
Input
LVTTL clock output
LVTTL clock output
Output
Bank 0
LVTTL clock output
LVTTL clock output
Output
Bank 1
Divider selection control input
Bank 0 output enable control; also used
with DIVSEL, OE_1 to select dividers
Bank 1 output enable control; also used
with DIVSEL, OE_0 to select dividers
VDD 3.3V power supply
VSS Ground
Figure 3: Divide-by-3, Divide-by-4 Timing
HREF_N
HREF_P
VX
Q0_1:2, Q1_3:4
(divide by 4)
tpHL
tpLH
Q0_1:2, Q1_3:4
(divide by 3)
tpHL
tpLH
This document contains information on a preproduction product. Specifications and information herein are subject to change without notice.
ISO9001
QS9000
10.31.00
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