MAXIM MAX9386, MAX9387, MAX9388 User Manual

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 output-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 VBB, nominally VCC- 1.425V. The select inputs accept signals between VCCand VEE. Internal pulldowns to VEEensure 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 complementary input is connected to the on-chip reference output VBB. 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

VCC- 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

♦ 318ps (typ) Propagation Delay

♦ >2.7GHz Toggle Frequency

♦ 0.3ps(RMS) Random Jitter

♦ <14ps (max) at +25°C Output-to-Output Skew

(MAX9387)

♦ -2.375V to -5.5V Supplies for Differential

LVECL/ECL

♦ +2.375V to +5.5V Supplies for Differential

LVPECL/PECL

♦ Outputs Low for Open Inputs

♦ Dual Output Buffers (MAX9387)

♦ Pin Compatible with MC100EP57 (MAX9388EUP)

♦ >2kV ESD Protection (Human Body Model)

MAX9386/MAX9387/MAX9388

Differential 5:1 or 4:1 ECL/PECL Multiplexers

with Single/Dual Output Buffers

________________________________________________________________ Maxim Integrated Products 1

19-2617; Rev 1; 12/02

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

PART

TEMP

RANGE

PIN-

SELECTION

MAX9386EUP

5:1 mux with 1 output buffer

MAX9386EEP*

5:1 mux with 1 output buffer

Pin Configurations

Pin Configurations continued at end of data sheet.

Ordering Information continued at end of data sheet.

*Future product—contact factory for availability.

PACKAGE

-40°C to +85°C 20 TSSOP

-40°C to +85°C 20 QSOP

TOP VIEW

MAX9386

SEL2

SEL1

SEL0D1

BB1

BB2

TSSOP/QSOP

MAX9386/MAX9387/MAX9388

Differential 5:1 or 4:1 ECL/PECL Multiplexers with Single/Dual Output Buffers

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

VCC- VEE...............................................................-0.3V to +6.0V

Inputs (D_, D_, SEL_) to V

......................-0.3V to (VCC+ 0.3V)

D_ to D_ ..............................................................................±3.0V

Continuous Output Current .................................................50mA

Surge Output Current........................................................100mA

BB_

Sink/Source Current ...............................................±600µA

Continuous Power Dissipation (T

= +70°C)

20-Lead TSSOP (derate 11.0mW/°C above +70°C) ....880mW

θJAin Still Air ...........................................................+91°C/W

...........................................................................+20°C/W

24-Lead TSSOP (derate 12.2mW/°C above +70°C) ....976mW

in Still Air ...........................................................+82°C/W

...........................................................................+15°C/W

20-Lead QSOP (derate 9.1mW/°C above +70°C) .......727mW

in Still Air .........................................................+110°C/W

...........................................................................+34°C/W

24-Lead QSOP (derate 9.5mW/°C above +70°C) .......762mW

in Still Air .........................................................+105°C/W

...........................................................................+34°C/W

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

ESD Protection Human Body Model (D_, D_, Q_, Q_, SEL_, V

BB_

) .............≥2kV

Lead Temperature (soldering, 10s) .................................+300°C

DC ELECTRICAL CHARACTERISTICS

(VCC- VEE= 2.375V to 5.5V, outputs loaded with 50Ω±1% to V

- 2V. Typical values are at VCC- VEE= 3.3V, V

IHD

= VCC- 1V,

ILD

= VCC- 1.5V, unless otherwise noted.) (Notes 1–4)

-40°C +25°C +85°C

PARAMETER

CONDITIONS

UNITS

INPUT (D_, D_, SEL_)

Single-Ended Input High Voltage

VBB connected to the unused input (Figure 1)

VCC -

Single-Ended Input Low Voltage

VBB connected to the unused input (Figure 1)

VCC -

Differential Input High Voltage

IHD

Figure 1

Differential Input Low Voltage

ILD

Figure 1

- V

< 3.0V

Differential Input Voltage

Figure 1

- V

≥ 3.0V

Input Current I

, VIL, V

IHD

, V

ILD

µA

SYMBOL

MIN TYP MAX MIN TYP MAX MIN TYP MAX

1.225

1.945

1.2

0.095

0.095 3.000 0.095 3.000 0.095 3.000

-100 +100 -100 +100 -100 +100

I H D - V I LD

1.225

0.880

1.625

0.095

1.945

1.2

0.095

0.880

1.625

0.095

1.225

1.945

1.2

0.095

0.880

1.625

0.095

MAX9386/MAX9387/MAX9388

Differential 5:1 or 4:1 ECL/PECL Multiplexers

with Single/Dual Output Buffers

_______________________________________________________________________________________ 3

AC ELECTRICAL CHARACTERISTICS

(VCC- VEE= 2.375V to 5.5V, outputs loaded with 50Ω±1% to V

- 2V, V

IHD

- V

ILD

= 0.15V to 1V, fIN≤ 2.5GHz input duty cycle

= 50%, input transition time = 125ps (20% to 80%). Typical values are at V

- VEE= 3.3V, V

IHD

= VCC- 1V, V

ILD

= VCC- 1.5V, fIN=

622MHz, input duty cycle = 50%, input transition time = 125ps (20% to 80%), unless otherwise noted.) (Note 7)

-40°C +25°C +85°C

CONDITIONS

UNITS

Differential Input-to-Output Delay

PLHD

PHLD

Figure 2

SEL_-to-Output Delay

PLH2

PHL2

Figure 4, input transition time = 500ps

Output-toOutput Skew

MAX9387 only, Figure 5 (Note 9)

Input-to-Output Skew

SKIO

Figure 6 (Note 10)

SKPP

(Note 11)

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC- VEE= 2.375V to 5.5V, outputs loaded with 50Ω±1% to V

- 2V. Typical values are at VCC- VEE= 3.3V, V

IHD

= VCC- 1V,

ILD

= VCC- 1.5V, unless otherwise noted.) (Notes 1–4)

-40°C +25°C +85°C

PARAMETER

SYMBOL

CONDITIONS

UNITS

OUTPUT (Q_, Q_)

Single-Ended Output High Voltage

Figure 2

Single-Ended Output Low Voltage

Figure 2

Differential Output Voltage

Figure 2

REFERENCE OUTPUT (VBB_ )

Reference Voltage Output

BB1

BB2

(Note 5)

POWER SUPPLY

MAX9386

MAX9387

(Note 6)

MAX9388

1.145

1.945

OH - V OL

+ I

BB1

= ±0.5mA

BB2

1.525

Supply Current

MIN TYP MAX MIN TYP MAX MIN TYP MAX

650 830 650 840 650 840

VCC -

1.425

34 50 36 50 38 50

40 60 42 60 45 60

31 47 33 47 35 47

0.895

1.695

1.325

1.145

1.945

1.525

1.425

1.145

1.945

1.525

0.895

1.695

1.325

VCC -

1.425

0.895

1.695

1.325

PARAMETER SYMBOL

P ar t- to- P ar t S kew

(20% to 80%) (Note 8)

SKOO

MIN TYP MAX MIN TYP MAX MIN TYP MAX

222 309 377 238 318 395 254 333 431

1.64 1.4 1.6

3.9 26 3.9 14 8.0 26

7.3 53 7.7 50 8.3 50

111 130 133

MAX9386/MAX9387/MAX9388

Differential 5:1 or 4:1 ECL/PECL Multiplexers with Single/Dual Output Buffers

4 _______________________________________________________________________________________

Note 1: Measurements are made with the device in thermal equilibrium. Note 2: Current into an I/O pin is defined as positive. Current out of an I/O pin is defined as negative. Note 3: DC parameters production tested at T

= +25°C and guaranteed by design over the full operating temperature range.

Note 4: Single-ended data input operation using V

BB_

is limited to (VCC- VEE) ≥ 3.0V.

Note 5: Use V

BB_

only for inputs that are on the same device as the V

BB_

reference.

Note 6: All pins open except V

and VEE.

Note 7: Guaranteed by design and characterization. Limits are set at ±6 sigma. Note 8: Measured from the 50% point of the input signal with the 50% point equal to V

, to the 50% point of the output signal.

Note 9: Measured between outputs of the same part at the signal crossing points for a same-edge transition. Note 10: Measured between input-to-output paths of the same part at the signal crossing points for a same-edge transition of the

differential input signal.

Note 11: Measured between outputs of different parts at the signal crossing points under identical conditions for a same-edge

transition.

Note 12: Device jitter added to the differential input signal.

AC ELECTRICAL CHARACTERISTICS (continued)

VCC- VEE= 2.375V to 5.5V, outputs loaded with 50Ω±1% to V

- 2V, V

IHD

- V

ILD

= 0.15V to 1V, fIN≤ 2.5GHz input duty cycle

= 50%, input transition time = 125ps (20% to 80%). Typical values are at V

- VEE= 3.3V, V

IHD

= VCC- 1V, V

ILD

= VCC- 1.5V, fIN=

622MHz, input duty cycle = 50%, input transition time = 125ps (20% to 80%), unless otherwise noted.) (Note 7)

-40°C +25°C +85°C

PARAMETER

SYMBOL

CONDITIONS

UNITS

Added Random Jitter (Note 12)

Clock

fIN = 2.5GH z

ps(RMS)

Added Deterministic Jitter (Note 12)

PRBS 2

- 1

P-P

Switching Frequency

MAX

VOH - VOL ≥ 300mV, Figure 2

GHz

Select Toggle Frequency

SEL

MHz

Output Rise and Fall Time (20% to 80%)

, tFFigure 2

fIN = 156M H z 0.3 1.15 0.3 1.15 0.3 1.15

pattern

fIN = 622M H z 0.3 1.15 0.3 1.15 0.3 1.15

fIN = 156M b p s 3395 3395 3395

fIN = 622M b p s 2161 2161 2161

MIN TYP MAX MIN TYP MAX MIN TYP MAX

0.3 1.15 0.3 1.15 0.3 1.15

2.7 2.7 2.7

100 100 100

67 105 138 74 117 155 81 128 165

MAX9386/MAX9387/MAX9388

Differential 5:1 or 4:1 ECL/PECL Multiplexers

with Single/Dual Output Buffers

_______________________________________________________________________________________ 5

Typical Operating Characteristics

(VCC- VEE= 3.3V, V

IHD

= VCC- 1V, V

ILD

= VCC- 1.5V, outputs loaded with 50Ω±1% to V

- 2V, f

= 1.5GHz, input duty cycle =

50%, input transition time = 125ps (20% to 80%), unless otherwise noted.)

SUPPLY CURRENT (IEE)

vs. TEMPERATURE

MAX9386 toc01

TEMPERATURE (°C)

SUPPLY CURRENT (mA)

6035-15 10

-40 85

OUTPUT AMPLITUDE (VOH - VOL)

vs. FREQUENCY

MAX9386 toc02

FREQUENCY (MHz)

OUTPUT VOLTAGE (mV)

2400200016001200800400

200

400

600

800

1000

0 2800

OUTPUT RISE/FALL vs. TEMPERATURE

MAX9386 toc03

TEMPERATURE (°C)

RISE/FALL TIME (ps)

603510-15

100

110

120

130

140

150

-40 85

FALL

RISE

DIFFERENTIAL PROPAGATION DELAY

vs. INPUT HIGH VOLTAGE

MAX9386 toc04

INPUT HIGH VOLTAGE (V)

PROPAGATION DELAY (ps)

2.72.42.11.81.5

280

290

300

310

320

330

340

350

360

370

270

1.2 3.0

PLHD

PHLD

DIFFERENTIAL PROPAGATION DELAY

vs. TEMPERATURE

MAX9386 toc05

TEMPERATURE (°C)

TRANSITION TIME (ps)

603510-15

290

300

310

320

330

340

350

280

-40 85

PLHD

PHLD

+ 9 hidden pages

MAXIM MAX9386, MAX9387, MAX9388 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual