AK4116 Datasheet, PDF (14/36 Pages) Asahi Kasei Microsystems – LOW POWER 48KHZ DIGITAL AUDIO RECEIVER

ASAHI KASEI
[AK4116]
„ System Reset and Power-Down
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:
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.
RSTN Bit (Address 00H; D0):
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.
PWN Bit (Address 00H; D1):
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.
MS0156-E-02
- 14 -
2004/04