What is 16-Bit, 16kSPS SD ADC?
16-Bit, 16kSPS SD ADC is a ADC IP core from LeoLSI listed on Semi IP Hub. It is listed with support for smic.
Vendor:
LeoLSI
Category:
ADC
16-Bit, 16kSPS SD ADC
The L55CSD16B16K IP consists of a 16-bit mono audio ADC with fully differential 1-channel mono audio input, 4-channel general pur…
Overview
The L55CSD16B16K IP consists of a 16-bit mono audio ADC with fully differential 1-channel mono audio input, 4-channel general purpose (GP) inputs and a digital microphone input. It also has an analog front end consisting of a microphone bias generator and a wide-range PGA, which offers gains of up to 50dB, allows smaller signals to be measured with high resolution. Analog-to-digital (ADC) employ sigma-delta (SD) modulation with selectable oversampling. ADC includes a digital decimation filter. L55CSD16B16K supports left-justified, I2S compatible and TDM modes. Sampling rates up to 16 kHz are supported.
Figure 1 shows a functional diagram of the L55CSD16B16K. The SD ADC block consists of multiplexers, reference circuits, a fourth-order SD modulator with fully differential architecture and digital decimation filter. The input range of the ADC is limited to between the top-level reference voltage and the bottom-level reference voltage at GP.
Considering the sampling rate of 16kS/s with 1kHz input and full scale input range, the L55CSD16B16K features dynamic performance of the 90dB SNR at Analog Mic path (AMIC).
Figure 1 shows a functional diagram of the L55CSD16B16K. The SD ADC block consists of multiplexers, reference circuits, a fourth-order SD modulator with fully differential architecture and digital decimation filter. The input range of the ADC is limited to between the top-level reference voltage and the bottom-level reference voltage at GP.
Considering the sampling rate of 16kS/s with 1kHz input and full scale input range, the L55CSD16B16K features dynamic performance of the 90dB SNR at Analog Mic path (AMIC).
Key features
- 55nm 2P7M SMIC CMOS technology
- Programmable Gain : 0 to 50dB
- Selectable Microphone bias : -1.3V/2.5V 2.9V
- Mono Audio input
- 4-channel GP fully-differential inputs
- 16-bit resolution
- 16kS/s conversion rate
- Digital serial interface : PDM / I2S / TDM
- Analog input range : AVSS to AVDD @GP
- Current consumption : 2.0mA @typ, analog
- Current consumption : 0.2mA @typ, digital
- SNR : 90dB @AMIC
- Power-down current : < 1uA
- Analog Supply : 1.8V to 3.6V
- Digital Supply : 1.2V
- Core Size : 0.4275mm2 @Analog
- Core Size : 0.0625mm2 @Digital
Applications
- Audio
What’s Included?
- GDSI, GDSII
- Verilog-model
- Datasheet
- Test plan
Silicon Options
| Foundry | Node | Process | Maturity |
|---|---|---|---|
| SMIC | 55nm | LL | — |
Specifications
Identity
Part Number
L55CSD16B16K
Vendor
LeoLSI
Type
Silicon IP
Analog
Resolution bits
16 Bit
Provider
HQ:
Korea
Frequently asked questions about ADC IP cores
How should engineers evaluate this ADC?
Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this ADC IP.
Can this semiconductor IP be compared with similar products?
Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.