Overview
The AD1803JRU-REEL, produced by Analog Devices Inc., is a low-power, 16-bit codec designed for modem, voice/handset, and telephony applications. It is also suitable for use as a cellular telephone interface. This codec is compliant with Intel AC '97 Rev 2.1 and offers a selectable AC '97 or DSP-style serial interface. The AD1803 features high-performance Σ-Δ analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) with programmable gain/attenuation, making it versatile for various signal processing tasks.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | 24-Lead Thin Shrink Small Outline Package (TSSOP) |
| Operating Temperature | 0°C to +70°C |
| Supply Voltage | Digital: 3V ~ 3.6V, 4.75V ~ 5.25V; Analog: 3.0V ~ 5.5V |
| Clock Frequency | 12.288 MHz, 24.576 MHz, 32.768 MHz |
| Clock Duty Cycle | 45% to 55% |
| ADC/DAC Resolution | 16-bit ADC, 15-bit DAC |
| Power Management | Several power-saving modes, including low power and full power modes |
| GPIO | Seven general-purpose input/output pins |
Key Features
- High-performance Σ-Δ ADCs and DACs with programmable gain/attenuation
- Digital Σ-Δ monitor output with selectable mix from ADC and DAC channels for call progress monitoring
- Advanced power management with multiple power-saving modes
- Seven general-purpose input/output (GPIO) pins and a wake interrupt signaling mechanism on GPIO events
- Selectable AC '97 or DSP-style serial interface
- Lead-free environmentally friendly option (AD1803JRUZ-REEL)
Applications
- Modem and telephony applications
- Voice and handset applications
- Cellular telephone interfaces
Q & A
- What is the AD1803JRU-REEL used for?
The AD1803JRU-REEL is used for modem, voice/handset, and telephony applications, as well as cellular telephone interfaces.
- What is the package type of the AD1803JRU-REEL?
The package type is a 24-Lead Thin Shrink Small Outline Package (TSSOP).
- What are the operating temperature ranges for the AD1803JRU-REEL?
The operating temperature range is from 0°C to +70°C.
- What are the supply voltage ranges for the AD1803JRU-REEL?
The digital supply voltage ranges from 3V to 3.6V and 4.75V to 5.25V, while the analog supply voltage ranges from 3.0V to 5.5V.
- What clock frequencies does the AD1803JRU-REEL support?
The AD1803JRU-REEL supports clock frequencies of 12.288 MHz, 24.576 MHz, and 32.768 MHz.
- Does the AD1803JRU-REEL have power-saving modes?
- How many GPIO pins does the AD1803JRU-REEL have?
The AD1803JRU-REEL has seven general-purpose input/output (GPIO) pins.
- Is the AD1803JRU-REEL lead-free?
- What type of serial interface does the AD1803JRU-REEL support?
The AD1803JRU-REEL supports both AC '97 and DSP-style serial interfaces.
- What is the resolution of the ADC and DAC in the AD1803JRU-REEL?
The ADC has a 16-bit resolution, and the DAC has a 15-bit resolution.
