ak4116 AKM Semiconductor, Inc., ak4116 Datasheet - Page 14

• Manufacturer Part Number: ak4116
• Description: Low Power 48khz Digital Audio Receiver
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
The AK4116 has a full power-down mode for all circuits that is activated by the PDN pin, and a partial power-down
mode activated by the PWN bit. The RSTN bit initializes the internal registers and timing. The AK4116 should be reset
once at power-up by bringing PDN pin = “L”.
PDN Pin:
RSTN Bit (Address 00H; D0):
PWN Bit (Address 00H; D1):
MS0156-E-03
System Reset and Power-Down
All analog and digital circuits are placed in power-down and reset modes by bringing PDN= “L”. All the registers
are initialized and clocks are stopped. Read/write operations to the registers are disabled.
All the registers except RSTN, PWN, XTL1-0 and EXCK are initialized by bringing RSTN bit = “0”. The internal
timings are also initialized. When RSTN bit= “0”, clocks are output, but SDTO is “L”. All register writes except
RSTN, PWN, XTL1-0 and EXCK are disabled. Reading from the registers is enabled.
Clock recovery mode is initialized by bringing PWN bit = “0”. Clocks from the PLL are stopped while the X’tal
clocks continue to be output. Unlike the PDN pin operation described above, internal registers and mode settings
are not initialized. Read/write operations to the registers are enabled.
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[AK4116]
2005/08