ISL99201 Intersil Corporation, ISL99201 Datasheet - Page 6

• Manufacturer Part Number: ISL99201
• Description: Filterless High Efficiency 1.5W Class D Mono Amplifier
• Manufacturer: Intersil Corporation

www.DataSheet4U.com
Pin Descriptions
SD
Shutdown Active Low. This signal is used to shut down and
activate the part. It is 1.8V to 5V compatible. During
shutdown, the part draws less than 100nA input current.
Coming out of shutdown takes 3.5ms and going into
shutdown is instantaneous.
SYNC
External clock input (available only in DFN). This pin allows
the chip to be synchronized to a system clock. This helps in
folding the spectral components and the switching harmonic
out of band of interest. The range of SYNC frequency is from
250kHz to 800kHz.
IN+
Positive Differential Input.
IN-
Negative Differential Input.
Block Diagram
Notes:
Gain = 6dB, 9.6dB, 12dB (gain setting)
Gain =
*TDFN only
SY NC
IN+
SD
IN-
(Ri + 5kΩ)
1
140kΩ
; with external resistor
(Notes *)
G EN ER ATO R
S AW TO O TH
RE FER EN CE
SHU TD O W N
B IAS A ND
LO G IC
6
+
-
+
-
CLICK A ND P O P
S UPP RE SS IO N
+180°
+
-
ISL99201
+
-
+
CO M P
-
V
Positive BTL output.
GND
Ground (Analog ground in CSP)
V
Power Supply (Analog VDD in CSP)
V
Negative BTL output
PVDD
Power Supply (CSP only)
PGND
Power Ground (CSP only)
C O M P
O
DD
O
+
-
G A TE DR IV E
P R O TE C TIO N
C UR R EN T
G A TE D RIVE
W ITH
O VE R
S R C
W ITH
SR C
V D D
VD D
February 27, 2009
G ND
V D D
V O +
VO -
FN6742.0