PA4101 PROTEC [Protek Devices], PA4101 Datasheet - Page 5

• Manufacturer Part Number: PA4101
• Description: PUNK with ?P Supervisor
• Manufacturer: PROTEC [Protek Devices]

Typical Application Audio Muting.
Notes:
95000 Rev. 0. 01/08
NOT FOR USE IN LIFE SUPPORT SYSTEMS
1. A Set Top Box audio output is “simulated” using C14, R15, R16 and VS 1.
2. VS 1 is a signal generator having an output impedance of 50Ohm.
3. U2 is the IC 74LS04.
4. U2 runs off of PUNK Vcc (Output of D1, C16 and R14).
5. Input to U2 is the Set Top Box Vcc
6. Switch S1 serves as a manual “Audio Mute” to enable the muting function.
7. Scope probes were attached to Set Top Box Power Supply and Line Out.
8.
FUNCTION.
GENERATOR
1V PTP 1KHz
SINE WAVE
Waveform shown in Figure 4 to Figure 9
V.S. 1
ANALOG PRODUCTS DIVISION
561 E. Elliot Road #175 Chandler, AZ 85225 Tel: [phone]. Fax: [phone]
D1
C16
10µF
C14
10µF
V
3.3V
CC
R14
22K
R16
10K
R15
10K
R13
240K
C12
1µF
12
3
5
www.protekanalog.com
SMUTEOUT
CEXT
V
R
CC
CS
14
C13
10µF
C15
10µF
R21
10K
GND
MUTECONT
8
MUTE 2
MUTE 1
R17
100Ω
R19
100Ω
S1
U2
74LS04
10
9
6
PUNK with µP Supervisor
R18
10K
R20
10K
LINE OUT RIGHT
LINE OUT LEFT
PA4101
73