Overview
The MC100EP32DG is an integrated ÷2 divider from onsemi, designed for high-speed applications. This device features differential ECL (Emitter-Coupled Logic) clock inputs and is available in various packages, including the SOIC-8 NB package. It operates in both PECL (Positive ECL) and NECL (Negative ECL) modes, making it versatile for different system requirements.
The MC100EP32DG includes an internally generated reference voltage (VBB) that can be used to rebias AC-coupled inputs or as a switching reference voltage for single-ended input conditions. The device also includes an asynchronous reset pin, which allows for the synchronization of multiple dividers in a system.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC (PECL Mode) | VEE = 0 V | - | - | 6 | V |
| VEE (NECL Mode) | VCC = 0 V | -6 | - | - | V |
| VI (Input Voltage) | PECL Mode | - | - | 6 | V |
| VI (Input Voltage) | NECL Mode | -6 | - | - | V |
| Iout (Output Current) | Continuous | - | - | 50 | mA |
| IBB (VBB Sink/Source) | - | - | ±0.5 | mA | |
| TA (Operating Temperature Range) | - | -40 to +85 | - | °C | |
| tPLH, tPHL (Propagation Delay) | - | - | 250-400 | ps | |
| tRR (Set/Reset Recovery) | - | - | 200 | ps | |
| tPW (Minimum Pulse Width for RESET) | - | - | 550 | ps |
Key Features
- 350 ps typical propagation delay
- Maximum frequency > 4 GHz typical
- PECL and NECL mode operating ranges:
- PECL: VCC = 3.0 V to 5.5 V with VEE = 0 V
- NECL: VCC = 0 V with VEE = −3.0 V to −5.5 V
- Open input default state and safety clamp on inputs
- Q output defaults LOW with inputs open or at VEE
- Pb-Free, Halogen Free, and RoHS compliant
- Asynchronous reset pin for system synchronization
- Internally generated reference voltage (VBB)
Applications
The MC100EP32DG is suitable for high-speed digital systems, including:
- Telecommunication equipment
- High-speed data transmission systems
- Networking and broadband applications
- Test and measurement equipment
- Other high-frequency digital circuits requiring precise clock division
Q & A
- What is the primary function of the MC100EP32DG?
The MC100EP32DG is an integrated ÷2 divider, meaning it divides the input clock frequency by two.
- What are the operating voltage ranges for the MC100EP32DG?
The device operates in PECL mode with VCC = 3.0 V to 5.5 V and VEE = 0 V, and in NECL mode with VCC = 0 V and VEE = −3.0 V to −5.5 V.
- What is the purpose of the VBB pin?
The VBB pin provides an internally generated reference voltage that can be used to rebias AC-coupled inputs or as a switching reference voltage for single-ended input conditions.
- How does the reset pin function?
The reset pin is asynchronous and is asserted on the rising edge, allowing for the synchronization of multiple dividers in a system.
- What are the typical propagation delays for the MC100EP32DG?
The typical propagation delays range from 250 to 400 ps.
- Is the MC100EP32DG RoHS compliant?
Yes, the MC100EP32DG is Pb-Free, Halogen Free, and RoHS compliant.
- What is the maximum operating frequency of the MC100EP32DG?
The maximum operating frequency is greater than 4 GHz typical.
- What are the thermal resistance values for the SOIC-8 NB package?
The thermal resistance (junction-to-ambient) is 190°C/W at 0 lfpm and 130°C/W at 500 lfpm.
- How does the device handle open inputs?
The device defaults to a LOW state when inputs are open or at VEE.
- What is the minimum pulse width for the RESET pin?
The minimum pulse width for the RESET pin is 550 ps.
