ISD-ES2100DEMO
Board Description:
The ISD2100 board can be used in conjunction with the ISD15100 evaluation kit as daughter card
to demonstrate all functionality of ISD2100 or as stand alone unit that can be connected to the
user’s system using the on board header pins. The board contains an ISD2100, a 3.5mm audio
Jack and speaker header pins.
Power and Connectors:
Power:
Power is supplied to the ISD2100DEMO from the on board connectors if the board is used with the
ISD15100 evaluation board. When the board is used a stand alone the J8 is used to connect +3V power to
the board using external supplies connected via VCC and GND pins.
REFERENCE
DESIGNATOR Description SUPPLY
GND Ground 0V
VCC+ External Spply 2.7V to 3.6V
SPI Connection J1, J2
The user’s microcontroller can communicate to the on-board ISD2100 via J2. An can monitor the
signal on J1. Users need at least the four SPI signals plus a common ground. If users intend to
implement digital-read or digital-write commands, they need to poll RDY/BSYB pin for data flow
control as well.
Connector Name Description
J1, J2 pin1,2,3,4 VCC
J1, J2 Pin 5,6,7 No Connect
J1,J2 pin 8 RDY_BSYB/GPIO4
J1,J2 Pin9 INTB/GPIO3
J1,J2 Pin 10 SSB
J1,J2 Pin11 MOSI/GPIO0
J1,J2 Pin 12 MISO/GPIO2
J1,J2 Pin 13 SCLK/GPIO1
J1,J2 Pin14,15,16 GND
To use the ISD2100 Demo/daughter card with the ISD15100 evaluation kit, please follow the
steps below:
1. Chip-erase the on-board ISD15108 chip.
This is to prevent the POI macro of the on-board ISD15108 chip from conflicting
with the ISD2100 chip on the daughter card.
Unplug the ISD-ES15100_USB board and close the VPE15100.
2. Remove the two jumpers J17 SSB (G) and J21 RDY_BSYB (H).
In case the 0-ohm resistor R21 (next to the jumper J17 SSB) is on the board,
remove it. Users don’t need the 0-ohm resistor as it is fully controlled by the
jumper J17.
3. Put the daughter card onto J19 (F).
4. Plug in the ISD-ES15100_USB board and launch the VPE2100
GNDPWM
R5 100
J8
12
SSB
GPIO5
VCCPWM
RD Y _BSYB/ GPIO4
MOS I / GP I O0
TP5
SSB NC13
TP2 GNDA
MOSI/ GPIO0
J1 FEMALE CONNECTOR1
CON16A
1 2
3 4
5 6
7 8
910
11 12
13 14
15 16
MISO/ GPI O2
VCC+
MISO/GPIO2
SCLK/GPIO1
TP6
V33D
RD Y _BSYB/ GPIO4
R9
2K
R6 100
C1
10 uF
12
GND
V33D
V33D
GPIO5
RDY _BSY B/GPIO4
SCLK/GPIO1
SW6
21
J7
1 2
SCLK/GPIO1
RD Y _BSYB/ GPIO4
MISO/GPIO2
Put J1 and J2 next
to each other
SW5
21
NC13
MOS I / GP I O0
C3
.01UF
SW3
21
V33D
SCLK/GPIO1
NC13
R11 80K
R2 100
R10 0
TP8
MOSI/GPIO0
SW1
21
R17
2K
V33D
SPK+
C4
.1UF
V33D/VCCPWM
SW2
21
VCC
VCC
INTB/GPIO3
SW4
21
U1
I2100_QF N20 Foot Print
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
MI SO
SCLK
SSB
MOS I
VSSD
VCC_PWM
SPK+
VSS_PWM
SPK-
VCC_PWM
INTB
RDY
NC
VCCD
GPIO5
NC
NC
NC
NC
NC
C5
4.7uF
12
SPK-
R1 100 Ohm
R8
2K
R13
2 K
TP1 V33D
INTB/GPIO3
TP9
MISO/GPIO2
SPK+
V33D
INTB/GPIO3
R4 100
C2
.1UF
J3
CP-3502N-ND
2
3
1
SPK-
GPIO5
R16
0
SPK+
TP7
VCC
SSB
R14
2 K
R15
2 K
R7
2K
R3 100
R12 0
J4
HEADER 2_1
1
2
J2 MALE CONNECTOR1
CON16A
1 2
3 4
5 6
7 8
910
11 12
13 14
15 16
Not On board ( ReV A bug
fix) R17
V33D/ VCCPW M
TP10
INTB/GPIO3
SPK-
Fig1 ISD-ES210DEMO Schematics
