Micrel Semiconductor, Inc.
San Jose, CA 95131
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Clock Dividers feature low jitter and skew.
Six high-speed, programmable, clock dividers of SY89871 family meet ultra-low jitter and skew requirements in SONET/SDH communications systems, high-end enterprise server and router applications, and high-speed ATE and T&M systems. Precision 2.5 and 3.3 V clock dividers have patent-pending input stage with internal termination and accept any differential input source. Within-device skew is
Read More »Gateway-On-A-Chip provides multiple Ethernet ports.
Suited for SOHO broadband gateways, model KS8695 chip and reference design package integrates 166 MHz, 32-bit ARM922TÃ-® CPU core with memory-management-unit; 5-port Ethernet managed switch; on-chip frame buffers; and 5 mixed-signal 10/100 transceivers. Connection types include WAN, PCMCIA, and MII interfaces. Unit provides performance headroom for differentiations such as Firewall, VPN, or...
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Fanout Buffers accept any differential input.
Models SY89831, SY89832/3, and SY89834 are high-speed, precision LVPECL and LVDS 1:4 fanout buffers with internal termination. No external components are required in signal path. Highest throughput is >2 GHz, lowest jitter is
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Transmitter and Receiver handle 115 kbps data rate.
ASK (Amplitude Shift Keyed) pair, Model MICRF005 receiver and Model MICRF103 transmitter, provide up to 115 kbps data rate at operating frequencies from 800 MHz to 1 GHz for short-range wireless applications. MICRF005 requires only 2 capacitors and a reference oscillator to implement complete RF receiver. Both devices operate from 5 V supply. MICRF005 consumes 10 mA supply current, while MICRF103...
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Bus Clock Synthesizers replace up to 8 discrete ICs.
SY89532/3/4/5 PLL-based precision bus clock synthesizers integrate 3 clock dividers, translator, and 3 fanout buffers into single, 64-pin TQFP package. They accept quartz-crystal oscillator input or differential or single-ended reference input, and provide LVPECL or LVDS output frequency between 33 and 500 MHz. Three output banks are independently programmed for target output frequencies. Jitter...
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Switches and MOSFETs conserve space in digital devices.
Housed in Teeny(TM) SC70-6 package, MIC94060 and MIC94061 smart-load switches offer 0.100 Ohm on-resistance (max). Simple P-Channel MOSFETs MIC94052 and MIC94053 offer 0.084 Ohm (max) on-resistance and allow more than 2A continuous current. Simple 4-terminal, P-Channel MOSFETs housed in SOT143-4 package, MIC94050 and MIC94051 offer 0.160 Ohm (max) on-resistance. Housed in SC-70 package, MIC94060...
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Op Amps achieve 410 MHz, 2200 V/us while consuming 2.5 mA.
Teeny(TM) MIC923 achieves 2200 V/us slew-rate with 410 MHz gain-bandwidth product (GBW), and MIC922 achieves GBW of 230 MHz and slew-rate of 1500 V/us. Intended for signal buffering, MIC922 is unity-gain stable, and MIC923 is optimized for applications with gain of 2 or greater. Both are capable of driving unlimited capacitance. Manufactured in SC-70 packaging, op amps are specified for supply...
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Low Drop-Out Regulator features programmable power-on reset delay.
MIC5249 LDO is capable of providing up to 300 mA and is designed for power-up sequencing in microprocessors. It allows user to program delay on RESET pin that alerts processor when output of LDO has reached and settled on its intended value, allowing processor to come up gradually. MIC5249 is available in tiny MSOP-8 package and comes in fixed voltages: 2.5, 2.6, 2.7, 2.8, 2.85, 2.9, and 3.0 V....
Read More »LDO Regulator serves low stand-by mode applications.
MIC5239 micropower low-dropout regulator provides keep-alive voltage for power-sensitive applications. It features low quiescent current of 23uA and input voltage range of 2.3 to 30 V. Regulator is stable with ceramic or tantalum output capacitor, and capable of providing up to 500 mA of operating current. Fixed output voltages include 5.0, 3.3, 2.5, and 1.8 V. Unit is offered in thermally...
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Op Amps in tiny SOT23-8 package draw low current.
MIC862 dual op amp provides -3dB bandwidth of 5 MHz and gain-bandwidth product of 3 MHz, yet consumes only 31 microA current per channel. MIC863 dual op amp operates at 4.2 microA per channel, while still providing -3 dB bandwidth of 800 kHz and gain-bandwidth product of 450 kHz. Both are unity gain stable and specified at supply voltage of 2, 2.7, and 5 V. Input offset voltage is 0.1 mV...
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