Overview
The PE4312C-Z, produced by pSemi, is a 50Ω, HaRP technology-enhanced 6-bit RF Digital Step Attenuator (DSA) designed for high-performance RF applications, particularly in 3G/4G wireless infrastructure. This component is an upgraded version of the PE4302, offering higher linearity, improved attenuation accuracy, and faster switching speeds. It is manufactured using pSemi’s UltraCMOS® process, a patented variation of silicon-on-insulator (SOI) technology on a sapphire substrate, which provides the performance of GaAs with the economy and integration of CMOS technology.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Frequency Operation | 1 | 4000 | MHz | ||
| Attenuation Range | 0.5 dB step | 0 | 31.5 | dB | |
| Insertion Loss | 1 MHz–<1 GHz | 1.3 | 1.5 | 2.1 | dB |
| Insertion Loss | 1 GHz–<2 GHz | 1.5 | 1.8 | 2.3 | dB |
| Insertion Loss | 2 GHz–<4 GHz | 1.8 | 2.1 | 2.5 | dB |
| Attenuation Accuracy | @ 1 GHz | ±(0.10 + 1% x Atten) | |||
| Attenuation Accuracy | @ 2.2 GHz | ±(0.15 + 2% x Atten) | |||
| Attenuation Accuracy | @ 4 GHz | ±(0.15 + 8% x Atten) | |||
| High Linearity (IIP3) | +59 | dBm | |||
| Power Supply Range | 2.3 | 5.5 | V | ||
| Control Logic Compatibility | 1.8V | ||||
| Operating Temperature | 105 | °C |
Key Features
- Attenuation in 0.5 dB steps up to 31.5 dB
- High linearity with +59 dBm IIP3
- Monotonicity up to 4 GHz
- Safe attenuation state transitions
- Wide power supply range of 2.3–5.5V
- 1.8V control logic compatible
- External negative supply option
- No external blocking capacitors required if 0 VDC is present on the RF ports
- Pin-compatible with PE4302, PE4305, and PE4306
- Unique power-up state selection
- Programming modes include direct parallel, latched parallel, and serial
Applications
The PE4312C-Z is designed for use in various high-performance RF applications, including:
- 3G/4G wireless infrastructure
- Base stations and small cells
- RF test and measurement equipment
- Wireless communication systems
- Other high-frequency RF applications requiring precise attenuation control
Q & A
- What is the attenuation range of the PE4312C-Z?
The PE4312C-Z offers an attenuation range of 0.5 dB steps up to 31.5 dB. - What is the frequency operation range of the PE4312C-Z?
The frequency operation range is from 1 MHz to 4 GHz. - What is the insertion loss of the PE4312C-Z?
The insertion loss varies by frequency but is typically between 1.3 dB and 2.5 dB. - What is the linearity performance of the PE4312C-Z?
The PE4312C-Z has a high linearity performance with an IIP3 of +59 dBm. - What power supply range does the PE4312C-Z support?
The power supply range is from 2.3V to 5.5V. - Is the PE4312C-Z compatible with other pSemi models?
Yes, it is pin-compatible with PE4302, PE4305, and PE4306. - What programming modes are available for the PE4312C-Z?
The available programming modes include direct parallel, latched parallel, and serial. - Does the PE4312C-Z require external blocking capacitors?
No external blocking capacitors are required if 0 VDC is present on the RF ports. - What is the operating temperature range of the PE4312C-Z?
The operating temperature range is up to 105°C. - What technology is used in the manufacturing of the PE4312C-Z?
The PE4312C-Z is manufactured using pSemi’s UltraCMOS® process, a patented variation of silicon-on-insulator (SOI) technology on a sapphire substrate.
