MAX11041_10 Datasheet, PDF (7/17 Pages) Maxim Integrated Products – Wired Remote Controller

Wired Remote Controller
TO
AUDIO
CIRCUIT
MAX11041
FORCE
R_SENSE
SENSE
C_SENSE
10nF
10kΩ
JACK/PLUG
CONNECTION
WIRED REMOTE CONTROLLER
R_SW0
R_SW1
R_SW30
R_JACK
HOLD
SWITCH
Figure 2. Recommended FORCE and SENSE Configuration
Table 1. Control Register
BITS
C7
READ/WRITE
R/W
POWER-UP STATE
DESCRIPTION
1
0 = FORCE is high-impedance
1 = FORCE is not high-impedance (normal operation)
C6
R/W
0
0 = Normal operation
1 = Power-down state, full reset
C5
R
C4–C0
—
1
Not used
1 = FIFO is empty
0 = FIFO is not empty
Reading/writing has no effect
Table 2. FIFO Data Format
FIFO DATA
Keypress type (MAX11041)
Keypress duration
BIT NAMES
K7
K6
K5
K4
K3
K2
K1
K0
OF
T6
T5
T4
T3
T2
T1
T0
X = Don’t care.
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