Datasheet

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General Description

The MAX9370/MAX9371/MAX9372 LVTTL/TTL-to-differ-

ential LVPECL/PECL translators are designed for high-

speed communication signal and clock driver

applications. The MAX9370/MAX9372 are dual

LVTTL/TTL-to-LVPECL/PECL translators that operate in

excess of 1GHz. The MAX9371 is a single translator.

The MAX9370/MAX9371 operate over a wide 3.0V to

5.25V supply range, allowing high-performance clock

or data distribution in systems with a nominal 3.3V or

5.0V supply. The MAX9372 is designed to operate from

3.0V to 3.6V.

The devices default to output high if the input is discon-

nected. They feature low 270ps propagation delay. The

MAX9370/MAX9371/MAX9372 employ industry-stan-

dard flow-through pinouts. These devices are specified

for operation from -40°C to +85°C, and are offered in

space-saving, 8-pin SOT23, µMAX, and SO packages.

Applications

Precision Clock/Data Level Translation

Central Office Clock Distribution

DSLAM/DLC

Base Station

Mass Storage

Features

♦ Guaranteed 1GHz Operating Frequency at 600mV

Differential Output

♦ 270ps Propagation Delay

♦ 10ps Output-to-Output Skew (MAX9370/MAX9372)

♦ Wide Supply Range: 3.0V to 5.25V

(MAX9370/MAX9371)

♦ ESD Protection > 2kV (Human Body Model)

♦ Output High with Input Open

♦ Available in Small 8-Pin SOT23, µMAX, and SO

Packages

♦ Improved Upgrades to MC100EL22, MC100EPT20,

MC100EPT22

MAX9370/MAX9371/MAX9372

LVTTL/TTL-to-Differential LVPECL/PECL

Translators

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

MAX9370

MAX9371

MAX9372

TTL/LVTTL

INPUT

= 50Ω

50Ω

PECL/LVPECL

RECEIVER

- 2.0V

Typical Operating Circuit

19-2377; Rev 0; 4/02

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.

PART TEMP RANGE PIN-PACKAGE

MAX9370EKA-T* -40°C to +85°C 8 SOT23-8

MAX9370EUA* -40°C to +85°C 8 µMAX

MAX9370ESA -40°C to +85°C 8 SO

MAX9371EKA-T* -40°C to +85°C 8 SOT23-8

MAX9371EUA* -40°C to +85°C 8 µMAX

MAX9371ESA -40°C to +85°C 8 SO

MAX9372EKA-T* -40°C to +85°C 8 SOT23-8

MAX9372EUA* -40°C to +85°C 8 µMAX

MAX9372ESA -40°C to +85°C 8 SO

*Future product—contact factory for availability.

Pin Configurations/Functional Diagrams appears at end of

data sheet.

Summary of content (9 pages)

PAGE 1
9-2377; Rev 0; 4/02 LVTTL/TTL-to-Differential LVPECL/PECL Translators The MAX9370/MAX9371/MAX9372 LVTTL/TTL-to-differential LVPECL/PECL translators are designed for highspeed communication signal and clock driver applications. The MAX9370/MAX9372 are dual LVTTL/TTL-to-LVPECL/PECL translators that operate in excess of 1GHz. The MAX9371 is a single translator. The MAX9370/MAX9371 operate over a wide 3.0V to 5.25V supply range, allowing high-performance clock or data distribution in systems with a nominal 3.
PAGE 2
MAX9370/MAX9371/MAX9372 LVTTL/TTL-to-Differential LVPECL/PECL Translators ABSOLUTE MAXIMUM RATINGS VCC to GND (MAX9370/MAX9371) .......................-0.3V to +5.5V VCC to GND (MAX9372) ........................................-0.3V to +4.0V D_ to GND ..................................................-0.3V to (VCC + 0.3V) Q_, Q_ to GND ...........................................-0.3V to (VCC + 0.3V) Continuous Output Current ................................................50mA Surge Output Current.........
PAGE 3
LVTTL/TTL-to-Differential LVPECL/PECL Translators (VCC = 3.0V to 5.25V for MAX9370/MAX9371, VCC = 3.0V to 3.6V for MAX9372, outputs terminated with 50Ω ±1% to VCC - 2.0V. Typical values are at VCC = 3.3V, VIH = 2.4V, VIL = 0.4V, unless otherwise noted.
PAGE 4
Typical Operating Characteristics (MAX9371, VCC = 3.3V, VIH = 2.4V, VIL = 0.4V, outputs terminated with 50Ω to VCC - 2V, input transition time = 125ps (20% to 80%), TA = +25°C, unless otherwise noted.) DIFFERENTIAL OUTPUT VOLTAGE (VOH - VOL) vs. FREQUENCY MAX9370/MAX9372 18 14 MAX9371 10 600 400 -40 -15 10 35 60 FALLING EDGE RISING EDGE 220 180 0 85 240 200 200 0 6 0.4 0.8 1.2 1.6 2.0 -40 FREQUENCY (GHz) TEMPERATURE (°C) -15 10 PROPAGATION DELAY vs.
PAGE 5
LVTTL/TTL-to-Differential LVPECL/PECL Translators PIN NAME FUNCTION SO µMAX SOT23 1 8 Q0 2 7 Q0 Inverting Differential LVPECL/PECL Output 0. Typically terminate with 50Ω resistor to VCC - 2V. 3 6 Q1 Noninverting Differential LVPECL/PECL Output 1. Typically terminate with 50Ω resistor to VCC - 2V. 4 5 Q1 Inverting Differential LVPECL/PECL Output 1. Typically terminate with 50Ω resistor to VCC - 2V. 5 2 GND 6 4 D1 LVTTL/TTL Input 1.
PAGE 6
MAX9370/MAX9371/MAX9372 LVTTL/TTL-to-Differential LVPECL/PECL Translators Ensure that the output currents do not exceed the continuous safe output current limit or surge output current limit as specified in the Absolute Maximum Ratings table. Under all operating conditions, the device’s total thermal limits should be observed. Supply Bypassing Bypass VCC to GND with high-frequency surface-mount ceramic 0.1µF and 0.01µF capacitors in parallel and as close to the device as possible, with the 0.
PAGE 7
LVTTL/TTL-to-Differential LVPECL/PECL Translators N.C. 1 8 VCC VCC 1 Q 2 7 D GND Q 3 6 N.C. N.C. 4 5 GND MAX9371 8 N.C. 2 7 Q D 3 6 Q N.C. 4 5 N.C.
PAGE 8
Package Information SOT23, 8L.EPS (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) 4X S 8 E ÿ 0.50±0.1 8 INCHES DIM A A1 A2 b H c D e E H 0.6±0.1 1 L 1 α 0.6±0.1 S BOTTOM VIEW D MIN 0.002 0.030 MAX 0.043 0.006 0.037 0.010 0.014 0.005 0.007 0.116 0.120 0.0256 BSC 0.116 0.120 0.188 0.198 0.016 0.026 6∞ 0∞ 0.0207 BSC 8LUMAXD.
PAGE 9
LVTTL/TTL-to-Differential LVPECL/PECL Translators 9LUCSP, 3x3.EPS Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.