ISD3800FYI Datasheet, PDF (8/25 Pages) Nuvotem Talema – Digital ChipCorder with Digital Audio Interface

ISD3800
Pin
Number
48L-
LQFP
Pin Name
I/O Function
17
V_CCSPK
18 SPK+
I In PWM mode: Digital Power for the PWM Driver. Deliver 1-watt
output power at V_CCSPK = 5V.
Or,
In Class-AB mode: Analog Power for the Class-AB output. Class-AB
BTL delivers 1-watt output power at V_CCSPK = 5V.
O PWM driver positive output. This SPK+ output, together with SPK-
pin, provide a differential output to drive 8Ω speaker or buzzer.
During power down this pin is in tri-state.
Or, can be configured as Class-AB BTL which, together with SPK-
pin, provides a differential voltage output.
Or, can be configured as a Class-AB single-ended output.
19
V_SSSPK
I In PWM mode: Digital Ground for the PWM Driver.
Or,
In Class-AB mode: Analog Ground for the Class-AB output.
20 SPK-
O PWM driver negative output. This SPK- output, together with SPK+
pin, provides a differential output to drive 8Ω speaker or buzzer.
During power down this pin is tri-state.
Or, can be configured as Class-AB BTL which, together with SPK+
pin, provides a differential voltage output.
Or, can be configured as a Class-AB single-ended output.
21
V_CCSPK
22 NC
I In PWM mode: Digital Power for the PWM Driver. Deliver 1-watt
output power at V_CCSPK = 5V.
Or,
In Class-AB mode: Analog Power for the Class-AB output. Class-AB
BTL delivers 1-watt output power at V_CCSPK = 5V.
This pin should be left unconnected.
23 NC
This pin should be left unconnected.
24 NC
This pin should be left unconnected.
25 INTB /
GPIO3
O Active low interrupt request pin. This pin is an open-drain output.
Can be configured as GPIO3.
26 RDY/BSYB / O An output pin to report the status of data transfer on the SPI
GPIO2
interface. “High” indicates that ISD3800 is ready to accept new SPI
commands or data.
Can be configured as GPIO2.
27 RESET
I Applying power to this pin will reset the chip. (A high pulse of 50ms
or more will reset the chip.)
Publication Release Date: Sep 22, 2010
-8-
Revision 0.60