TheKX1400isanaudioplaybackICdesignedtoplay8kHzaudiodatadirectlytoanexternalspeakerviaanon-chipdigitalaudioprocessorandClass-Ddriver.Both12-bitPCMand4-bitIMAADPCMdataformatsaresupported.Italsohasabuilt-intonegeneratorcapableofgeneratingtonesat4096differentfrequencies.Theon-chipaudioprocessoralleviatestheneedforanexternallow-passfilterinmostcases.TheKX1400utilizeslowpowerCMOStechnologyandprovidesast
The KX1
400 is an audio playback
ICdesigned to play 8kHz audio data directly to an external speaker
viaan
on-chip digital audio processor and Cl
ass-D driver. Both 12-bit
PCMand 4-bit IMA ADPCM data formats are supported. It also has a built-in tone generator capable of generating tones at 4096 different frequencies. The on-chip audio processor alleviates the need for an external low-pass filter in most cases. The KX1400 utilizes low
powerCMOS technology and prov
ides a stand-by power-savings state, making it well suited for battery powered applications.
The KX1400 operates in either a stand-alone mode or interfaced to a microcontroller (
MCU) host. Audio data is provided to the KX1400 from either a user-programmed external serial memory or from the host MCU. Under MCU control, the user can select phrases or tone sequences to play from the external memory, play tone sequences via commands, or stream audio data directly to the on-chip audio processor. In stand-alone mode no MCU is required; on reset, the KX1400 plays a single phrase from external memory and then returns to a stand-by power-saving state.
KX1400主要特性:
Plays Pre-recorded 8kHz Audio Data
On-chip Tone Generator
Operates Stand-alone or as MCU Peripheral
Built-in Digital Audio Processor
Integrated Class-D Speaker Driver
No External Low-pass Filter Required
Digital Volume Control
On-chip Oscillator – No XTAL Required
Plays up to 4096 Pre-recorded Audio Phrases
Configurable General-purpose Clock Output
Two General-purpose Digital Outputs
Low-power Standby State (1 &
mu;A
Typ.)
Operating Voltage: 2.7V – 5.5V
Operating Temperature: -40℃ to 85℃
Packages:
- 20-
pinSOIC (KX1400EW)
-
24-pin 4X4mm QFN (KX1400EG
