MAX3680/MAX3680A 19-1210 Rev 3 3/07 +3.3V, 622Mbps, SDH/SONET 1:8 Deserializer with TTL Outputs General Description Features The MAX3680/MAX3680A deserializer is ideal for con- Single +3.3V Supply verting 622Mbps serial data to 8-bit-wide, 77Mbps par- 622Mbps Serial to 77Mbps Parallel Conversion allel data in ATM and SDH/SONET applications. Operating from a single +3.3V supply, this device 165mW Power accepts PECL serial clock and data inputs, and deliv- Synchronization Input for Data Realignment and ers TTL clock and data outputs. The MAX3680 also pro- Reframing (MAX3680) vides a TTL synchronization input that enables data realignment and reframing. Differential 3.3V PECL Clock and Data Inputs The MAX3680/MAX3680A is available in the extended- TTL Data Outputs industrial temperature range (-40C to +85C), in a 28- pin SSOP package. Applications Ordering Information 622Mbps SDH/SONET Transmission Systems PART TEMP RANGE PIN-PACKAGE 622Mbps ATM/SONET Access Nodes MAX3680EAI -40C to +85C 28 SSOP Add/Drop Multiplexers MAX3680EAI+ -40C to +85C 28 SSOP MAX3680AEAI -40C to +85C 28 SSOP Digital Cross-Connects +Denotes lead-free package. Pin Configuration appears at end of data sheet. Typical Operating Circuit V = +3.3V CC V CC PD7 V = +3.3V CC V = +3.3V CC MAX3680/ PD6 MAX3680A 130 130 PD5 SD+ PHOTODIODE MAX3675 OVERHEAD SD- TERMINATION PD4 82 82 DATA PD3 AND LIMITING PREAMP 100 CLOCK AMP V = +3.3V CC RECOVERY MAX3664 PD2 130 130 PD1 SCLK+ SCLK- PD0 82 82 PCLK SYNC GND THIS SYMBOL REPRESENTS A TRANSMISSION LINE OF CHARACTERISTIC IMPEDANCE Z = 50. 0 Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE+3.3V, 622Mbps, SDH/SONET 1:8 Deserializer with TTL Outputs ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND) Continuous Power Dissipation (T = +85C) A V ........................................................................-0.5V to +5V SSOP (derate 9.52mW/C above +85C) .....................619mW CC PECL Inputs (SD+/-, SCLK+/-)................-0.5V to (V + 0.5V) Operating Temperature Range ...........................-40C to +85C CC TTL Input (SYNC) ....................................-0.5V to (V + 0.5V) Storage Temperature Range .............................-65C to +160C CC TTL Outputs (PCLK, PD )........................-0.5V to (V + 0.5V) Lead Temperature (soldering, 10s) .................................+300C CC 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. DC ELECTRICAL CHARACTERISTICS (V = +3.0V to +3.6V, T = -40C to +85C, unless otherwise noted. Typical values are at V = +3.3V, T = +25C.) CC A CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Current I TTL outputs = high 25 50 90 mA CC PECL INPUTS (SD+/-, SCLK+/-) Input High Voltage V V - 1.16 V - 0.88 V IH CC CC Input Low Voltage V V - 1.81 V - 1.48 V IL CC CC Input High Current I V = V -10 10 A IH IN IH(MAX) Input Low Current I V = V -10 10 A IL IN IL(MAX) TTL INPUT AND OUTPUTS (SYNC, PCLK, PD ) (Note 1) Input High Voltage V 2.0 V IH Input Low Voltage V 0.8 V IL Input High Current I V = V -10 10 A IH IN IH(MAX) Input Low Current I V = V -10 10 A IL IN IL(MAX) Output High Voltage V Output sourcing = 400A 2.4 V V CC OH Output Low Voltage V Output sinking = 400A 0 0.44 V OL Note 1: The SYNC input is available only on the MAX3680. AC ELECTRICAL CHARACTERISTICS (V = +3.0V to +3.6V, T = +25C, unless otherwise noted.) (Note 2) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Maximum Serial Clock Frequency f 622 MHz SCLK Serial Data Setup Time t 800 ps SU Serial Data Hold Time t 50 ps H Parallel Clock to Data Output Delay t V = +3.3V, C = 18pF -200 500 2000 ps CLK-Q CC L Note 2: AC characteristics guaranteed by design and characterization. 2 MAX3680/MAX3680A