■ Feature
● Sound data
Speech synthesis algorithm: The algorithm can be specified for each phrase.
HQ-ADPCM/4bit ADPCM2/8bit non-linear PCM /
8bit Straight PCM/16bit Straight PCM
Sampling frequency: The sampling frequency can be specified for each phrase.
10.7/21.3kHz,
6.4/12.8/25.6kHz,
8.0/16.0/32.0kHz,
11.025/22.05/44.1kHz,
12.0/24.0/48.0kHz
Maximum number of phrases: 4096 Phrases
● Edit ROM function
● Playback function
Repeat function: LOOP command
Mixing-function: Up to 4-channel
Volume adjustment function: CVOL command 128 levels (including off-state)
AVOL command 16 levels (including off-state)
● Low-pass filter
● 16-bit D/A converter
● Speaker amplifier: Class AB 1. 0W 8Ω (SPVDD =5V, Ta=25 OC)
● Line amplifier output: 10kΩ driving (Exclusive operation from speaker amplifier output)
● External analog sound input (at the time Class AB speaker amplifier choice, with analog mixing function)
● MCU command interface: I2C Interface (Slave)
● Failure detection function
Speaker short detection: Speaker pin ground fault detection, speaker pin short detection
Speaker disconnection detection
Thermal detection
Clock error detection
Flash memory error detection
● Clock backup function
● Master clock frequency: 4.096MHz, 4.000MHz
● Power-supply voltage 2.7V to 5.5V*1
DVDD，SPV DD and IOVDD can be set independently. (SPVDD≥DVDD)
● Operating temperature range: -40 OCto +70 OC*2
● Package: 32-pin TQFP (7mm x 7mm, 0.8mm pitch)
● Ordered Part Name: ML22Q66X-NNNTB，ML22Q66X-xxxTB (32-pin TQFP) *3