KX1400EW Keterex, KX1400EW Datasheet - Page 21

• Manufacturer Part Number: KX1400EW
• Description: Audio D/A Converter ICs KX1400 Audio Playback IC
• Manufacturer: Keterex

Specifications of KX1400EW

• Resolution: 12 bit
• Operating Supply Voltage: 2.7 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Maximum Power Dissipation: 120 mW
• Mounting Style: SMD/SMT
• Number Of Dac Outputs: 2
• Power Consumption: 320 mW
• Supply Current: 50 mA
• Thd Plus Noise: 40 dB
• Package / Case: SOIC-20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

external serial memory.
memory. The BUSY pin is connected to the host MCU’s MISO signal to allow programming the external
memory in-system via the MCU. The LEDs are controlled with commands sent from the MCU and the
CLKOUT signal from the KX1400 is used as the MCU’s system clock (optional).
7.3. Host Controlled with External Memory
The example circuit in Figure 7.3 shows the KX1400 in host-controlled operation with audio data stored in
Host MCU
XTAL1
MCLK
MSSL
MOSI
MISO
Figure 7.3. KX1400 in Host-controlled Operation with External Memory
GND
P1.0
+VDD
Commands are sent from the MCU to play audio phrases from the external
CS
SCL
SDI
CLKOUT (Optional)
BUSY
RDY (Optional)
MSIZE
RST
GND
VDD
VDD2
MODE
GPO1
MCLK
GPO2
SPO+
MSSL
SPO-
MISO
MOSI
KX1400 Audio Playback IC
Serial
Memory
SO
SCK
SI
CS
Optional
GND
VCC
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