Cirrus Logic CRD48L10 - Manual (Page 13)

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2.4 DSP Composer Control Header
2.3.7 Main Clock
• Connector Type: 100-MIL Male Header (2x1)
• Absolute Maximum Input Signal Level: +6.0 V
• Absolute Minimum Input Signal Level: –0.5 V
• Reference Designators: TP4 (CLKIN)
2.4 DSP Composer Control Header
• Connector Type: 50-MIL Male Header (15x2)
• Absolute Maximum Input Signal Level: +2.0 V
• Absolute Minimum Input Signal Level: –0.5 V
• Maximum Signal Output Level: +1.8 V
• Reference Designators: JP2
2.5 USB Power Input
The USB power input has the following characteristics and is switched by S8:
• Voltage Range: +4.75 VDC to +5.25 VDC
• Minimum Power: +5 V supply (0.5 A)
• Connector Type: USB Mini-B
• Reference Designator: USB1
2.6 Input Button (S1)
The button S1 (located near JP4) is used to change the audio input source.
2.7 MCU USER INTERFACE Header
• Connector Type: 100-MIL Male Header (7x2)
• Absolute Maximum Input Signal Level: +3.6 V
• Absolute Minimum Input Signal Level: –0.5 V
• Maximum Signal Output Level: +1.8 V
• Reference Designators: JP1
2.8 Buttons and Knobs
The buttons S9–S14 (located on MCU-USER-INTERFACE board) are used to control the MCU.
• S9 (Rotary Encoder)—Turn this knob to navigate up/down through menu page. Press down on the knob to select
an item
• S10 (Menu)—This button displays the CRD48L10 board configuration options.
• S11 (Left)—This button takes you back one level in the menu system.
• S12 (Right)—This button takes you one level deeper in the menu system.
• S13 (Exit)—This button exits the CRD48L10 board configuration menu.
• S14 (Reset)—This button executes a hard reset of the on-board MCU.