sy58037u Micrel Semiconductor, sy58037u Datasheet - Page 3

• Manufacturer Part Number: sy58037u
• Description: Sy58037u Ultra Precision 8 1 Mux With Internal Termination And 1 2 Cml Fanout Buffer
• Manufacturer: Micrel Semiconductor

Micrel
VREF-AC2
VREF-AC1
24, 27, 29, 32
PACKAGE/ORDERING INFORMATION
Pin Number
PIN DESCRIPTION
23, 28, 33
/IN4
VT4
/IN3
VT3
/IN2
20, 18,
16, 14,
13, 11,
42, 40,
25, 26,
IN5
IN4
IN3
NC
38, 36
19,15,
41, 37
30, 31
1, 43,
12, 8,
4, 44,
9, 7,
5, 3,
17,
10,
21,
22,
39
35
44-Pin MLF
2
10
11
1
2
3
4
5
6
7
8
9
44 43 42 41 40 39 38 37
12 13 14 15 16 17 18 19
Exposed Pad
VREF-AC0,
VREF-AC1,
VREF-AC2,
VREF-AC3
Pin Name
VT2, VT3,
VT4, VT5,
IN0, /IN0,
IN1, /IN1,
IN2, /IN2,
IN3, /IN3,
IN4, /IN4,
IN6, /IN6,
VT0, VT1
VT6, VT7
IN5,/IN5,
IN7, /IN7
®
Q0,/Q0,
Q1,/Q1
SEL0,
SEL1,
SEL2
GND,
VCC
(MLF-44)
20 21 22
36
35
34
25
24
23
33
32
31
30
29
28
27
26
Pin Function
Differential Inputs: These input pairs are the differential signal inputs to the device. Inputs accept
AC or DC-coupled signals as small as 100mV. Each pin of a pair internally terminates to a VT
pin through 50 . Note that these inputs will default to an indeterminate state if left open.
Please refer to the “Input Interface Applications” section for more details.
Input Termination Center-Tap: Each side of the differential input pair terminates to a VT pin.
The VT pins provide a center-tap to a termination network for maximum interface flexibility.
See “Input Interface Applications” section for more details.
Reference Voltage: This output biases to V
(IN, /IN). For AC-coupled applications, connect VREF_AC to the VT pin and bypass with a
0.01 F low ESR capacitor to V
The TTL/CMOS-compatible inputs select the inputs to the multiplexer. Note that this input is
internally connected to a 25k pull-up resistor and will default to a logic HIGH state if left open.
Positive Power Supply. Bypass with 0.1 F 0.01 F low ESR capacitors as close to each VCC
pin.
Differential Outputs: These CML output pairs are the outputs of the device. Please refer to
the truth table below for details. Unused output pairs may be left open. Each output is designed
to drive 400mV into 100 across each output pair.
Ground. GND and exposed pad must both be connected to the most negative potential of chip
ground.
GND
VCC
/Q1
Q1
VCC
GND
VCC
/Q0
Q0
VCC
GND
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
SY58037UMI
SY58037UMITR
SY58037UMY
SY58037UMYTR
(3)
(2)
(2, 3)
CC
3
. See “Input Interface Applications” section for more details.
Package
MLF-44
MLF-44
MLF-44
MLF-44
Type
(1)
CC
–1.2V. It is used when AC coupling the inputs
Operating
Industrial
Industrial
Industrial
Industrial
Range
Pb-Free bar-line indicator
Pb-Free bar-line indicator
A
SY58037U with
SY58037U with
= 25 C, DC electricals only.
SY58037U
SY58037U
Package
Marking
Precision Edge®
SY58037U
Matte-Sn
Matte-Sn
Pb-Free
Pb-Free
Finish
Sn-Pb
Sn-Pb
Lead