Gehäuseinformationen
| Gehäuse | Pins WQFN (RTE) | 20 |
| Betriebstemperaturbereich (°C) -40 to 105 |
| Gehäusemenge | Träger 3.000 | LARGE T&R |
Merkmale von PCM1809
- Stereo
low
power ADC:
- 2-channel analog microphones or line-in
- ADC line and microphone differential and
single-ended input performance:
- PCM1809
dynamic range:
- Differential Input: 104dB
- Single-ended Input: 102dB
- THD+N: –95 dB
- PCM1809
dynamic range:
- 2-VRMS differential full-scale input
- Direct Coupling
- Wide Input Common Mode support
- AC/DC Coupling support
- ADC sample rate (fS) = 8 kHz to 192 kHz
- Hardware pin control configurations
- Linear-phase or low-latency filter selection
- Flexible audio
serial data interface:
- Controller or target interface selection
- 32-bits, 2-channel TDM
- 32-bits, 2-channel I2S
- Automatic power-down upon loss of audio clocks
- Integrated high-performance audio PLL
- Single-supply operation: 3.3 V
- I/O-supply operation: 3.3 V or 1.8 V
- Power consumption
for 3.3-V AVDD supply:
- 19.6 mW/channel at 16-kHz sample rate
- 21.3 mW/channel at 48-kHz sample rate
Beschreibung von PCM1809
The PCM1809 is a low power audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to two analog channels. The device supports single-ended and differential line and microphone inputs with a 2VRMS full-scale differential signal. The device integrates a phase-locked loop (PLL), a DC removal high-pass filter (HPF), and supports sample rates up to 192kHz. The device supports time-division multiplexing (TDM) or I2S audio formats, selectable with the hardware pin level. Additionally, the PCM1809 supports Controller and target mode selection for the audio bus interface operation. These integrated features, along with the ability to be powered from a single supply of 3.3V, make the device an excellent choice for cost-sensitive, space-constrained audio systems in microphone recording applications.
The PCM1809 is specified from –40°C to +105°C, and is offered in a 20-pin WQFN package.