KX1400EW Keterex, KX1400EW Datasheet - Page 24

• 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

KX1400 Audio Playback IC
8.5. Mute
Description: The Mute command disables the speaker driver. The SPO+ and SPO- pins are terminated
8.6. Un-mute
Description: The Un-mute command enables the speaker output. The speaker output is gradually
24
Encoding:
Encoding:
Options: None
Options: None
Options: None
Length: 16 Bits
Length: 8 Bits
Length: 8 Bits
Type: Control
Type: Control
Data: Bits 15-4: Frequency Index
Data: None
Data: None
The Frequency Index specifies the frequency generated in Hertz using the following
formula: Frequency = (Index / 4.096) Hz. A Frequency Index of 000h repeats the previous
tone but mutes during the duration of the tone. This allows the generation of timed periods
of silence.
to ground after speaker output is gradually ramped down at a rate of one volume level
increment per millisecond (from the currently configured volume level to 0). Note the Mute
command does not terminate the processing of any current or future audio command, it
only silences the output.
ramped up at a rate of one volume level increment per millisecond (from 0 to the currently
configured volume level).
Bits 7-4
Bits 7-4
Unused
Unused
Bits 3-0
Bits 3-0
0100
0101