MAX9386 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – Differential 5:1 or 4:1 ECL/PECL Multiplexers with Single/Dual Output Buffers

19-2617; Rev 1; 12/02
Differential 5:1 or 4:1 ECL/PECL Multiplexers
with Single/Dual Output Buffers
General Description
The MAX9386/MAX9387/MAX9388 are fully differential,
high-speed, low-jitter ECL/PECL multiplexers (muxes)
with output buffer(s). The devices are designed for
clock-and-data distribution applications, and feature
extremely low propagation delays (318ps, typ) and out-
put-to-output skews (3.9ps, typ). The MAX9386 is a 5:1
mux with a single output buffer. The MAX9387 is a 5:1
mux with dual output buffers, and is intended for use in
redundant systems. The MAX9388 is a 4:1 mux with a
single output buffer, and is pin compatible with the
MC100EP57.
Three single-ended select inputs, SEL0, SEL1, and
SEL2, control the mux function on the MAX9386/
MAX9387. The MAX9388 has two select inputs, SEL0
and SEL1. The mux select inputs are compatible with
ECL/PECL logic, and are internally referenced to the
on-chip output V_BB, nominally V_CC - 1.425V. The select
inputs accept signals between V_CC and V_EE. Internal
pulldowns to V_EE ensure a low-default condition if the
select inputs are left open.
The differential inputs D_, D_ can be configured to
accept a single-ended signal when the unused comple-
mentary input is connected to the on-chip reference
output V_BB. All the differential inputs have internal bias
and clamping circuits that ensure low-default output
states when the inputs are left open.
The MAX9386/MAX9387/MAX9388 operate with a wide
supply range _|V_CC - V_EE| of 2.375V to 5.5V. The
MAX9386/MAX9388 are offered in 20-pin TSSOP and
QSOP packages. The MAX9387 is offered in 24-pin
TSSOP and QSOP packages.
Applications
High-Speed Telecom and Datacom Applications
Central Office Backplane Clock Distribution
DSLAM/DLC
Features
o 318ps (typ) Propagation Delay
o >2.7GHz Toggle Frequency
o 0.3ps(RMS) Random Jitter
o <14ps (max) at +25°C Output-to-Output Skew
(MAX9387)
o -2.375V to -5.5V Supplies for Differential
LVECL/ECL
o +2.375V to +5.5V Supplies for Differential
LVPECL/PECL
o Outputs Low for Open Inputs
o Dual Output Buffers (MAX9387)
o Pin Compatible with MC100EP57 (MAX9388EUP)
o >2kV ESD Protection (Human Body Model)
Ordering Information
PART
TEMP
RANGE
PIN-
PACKAGE SELECTION
MAX9386EUP -40°C to +85°C 20 TSSOP
5:1 mux with 1
output buffer
MAX9386EEP* -40°C to +85°C 20 QSOP
5:1 mux with 1
output buffer
Ordering Information continued at end of data sheet.
*Future product—contact factory for availability.
Pin Configurations
TOP VIEW
DO 1
DO 2
D1 3
D1 4
D2 5
D2 6
D3 7
D3 8
D4 9
D4 10
MAX9386
20 V_CC
19 SEL2
18 SEL1
17 SEL0
16 Q
15 Q
14 V_CC
13 V_BB1
12 V_BB2
11 V_EE
TSSOP/QSOP
Pin Configurations continued at end of data sheet.
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