sy58028u Micrel Semiconductor, sy58028u Datasheet - Page 2

• Manufacturer Part Number: sy58028u
• Description: Sy58028u Ultra Precision Differential Cml 4 1 Mux With 1 2 Fanout And Internal I/o Termination
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
M9999-082707
[e-mail] or [phone]
VREF-AC0
VREF-AC1
PACKAGE/ORDERING INFORMATION
TRUTH TABLE
PIN DESCRIPTION
Pin Number
SEL1
2, 6, 26, 30
3, 7, 27, 31
10, 13, 16
17, 20, 23
VT0
/IN0
VT1
/IN1
IN0
IN1
0
0
1
1
25, 28
29, 32
15, 18
14, 19
11, 12
21, 22
32-Pin MLF
9, 24
1, 4
5, 8
1
2
3
4
5
6
7
8
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
SEL0
®
0
1
0
1
(MLF-32)
Exposed Pad
SEL0, SEL1
VREF-AC0
VREF-AC1
VREF-AC2
VREF-AC3
Pin Name
VT0, VT1
VT2, VT3
IN0, /IN0
IN1, /IN1
IN2, /IN2
IN3, /IN3
/Q0, Q0
/Q1, Q1
GND,
VCC
NC
24
23
22
21
20
19
18
17
GND
VCC
Q1
/Q1
VCC
NC
SEL1
VCC
IN0 Input Selected
IN1 Input Selected
IN2 Input Selected
IN3 Input Selected
Pin Function
Differential Inputs: These inputs accept AC- or DC-coupled signals as small as 100mV.
Each pin of a pair internally terminates to a V
inputs will default to an indeterminate state if left open. If an input pair is not used, connect
one input of the pair to ground through a 1kΩ resistor and the complement to V
825Ω resistor. Unused V
Interface Applications” section for more details.
Input Termination Center-Tap: Each side of the differential input pair terminates to a V
pin. The V
interface flexibility. See “Input Interface Applications” section for more details.
This single-ended TTL/CMOS compatible input selects the inputs to the multiplexer. Note
that this input is internally connected to a 25kΩ pull-up resistor and will default to a logic
HIGH state if left open. Input logic threshold is V
No Connect.
Positive Power Supply: Bypass with 0.1µF0.01µF low ESR capacitors.
Differential Outputs: These CML output pairs are copies of the selected input. Unused
output pairs may be left floating. See “Output Interface” section for termination guidelines.
Ground. Ground pin and exposed pad must be connected to the same ground plane.
Reference Voltage: This reference output is equivalent to V
inputs. When interfacing to AC input signals, connect V
bypass with 0.01µF low ESR capacitor to V
Maximum sink/source current is 0.5mA.
Ordering Information
Notes:
1. Contact factory for die availability. Dice are guaranteed at T
2. Tape and Reel.
3. Pb-Free package recommended for new designs.
Part Number
SY58028UMI
SY58028UMITR
SY58028UMG
SY58028UMGTR
T
pin provides a center-tap to the termination network for maximum
(3)
(2)
(2, 3)
T
2
and V
Package
MLF-32
MLF-32
MLF-32
MLF-32
Type
REF-AC
(1)
may also be left open. Please refer to the “Input
Operating
Industrial
Industrial
Industrial
Industrial
CC
Range
T
. See “Input Interface Applications” section.
pin through 50Ω. Note that these
CC
/2. See “Truth Table” for select control.
REF-AC
Pb-Free bar-line indicator
Pb-Free bar-line indicator
CC
A
SY58028U with
SY58028Uwith
–1.4V. It is used for AC-coupled
= 25°C, DC electricals only.
directly to the V
SY58028U
SY58028U
Package
Marking
Precision Edge
T
CC
pin and
through a
SY58028U
Pb-Free
Pb-Free
NiPdAu
NiPdAu
Finish
Sn-Pb
Sn-Pb
Lead
T
®