STMicroelectronics STAMP0
STAMP0 is a microphone processor designed to interface a plurality of digital microphones (PDM inputs) to a generic MCU or host controller through a serial TDM connection (PCM output). STAMP0 has 4 PDM input lines to support connection of up to 8 single-membrane digital microphones or up to 4 dual-membrane microphones.DESCRIPTION
duct(s) VFQFPN 28L 5 x 5 x 1 mm te ProFEATURES
le● Up to 4 dual-channel PDM inputs o supporting: bs − up to 8 single-membrane microphones − up to 4 dual-membrane microphones - O
● Embedded recombination for dual) membrane digital microphones t(s
● I²C interface
● 3.3 V single supply operation uc
● Single serial slave TDM interface d
● Supported PCM sample frequency 44.1 kHz ro and 48 kHz P
● VFQFPN package − SMD-compliant te − ECOPACK®, RoHS and “Green” lecompliant bso
APPLICATIONS
O● Microphone array applications Recombination of the dualmembrane microphone is embedded in the device. An internal PLL provides stable clock references for the embedded processing as well as for the external microphone array. An I²C interface allows setting the internal registers for the control of the device depending on the application requirements. STAMP0 is housed in a small VFQFPN 28-lead 5 x 5 x 1 mm package. Table 1: Device summary Part number Temperature range (°C) Package Packing VFQ...