Hyundai Q17 Technical & Service Manual page 27

ELECTRICAL CHARACTERISTICS (continued)
Symbol Parameter
e Total Output Noise
N
SR Slew Rate
R Input Resistance
i
R Variable Output Resistance
Var Out
R Variable Output Load
load Var Out
SVR Supply Voltage Rejection
T Thermal Muting
M
T Thermal Shut-down
s
MUTE STAND-BY & INPUT SELECTION FUNCTIONS
V Stand-by ON Threshold
ST ON
V Stand-by OFF Threshold
ST OFF
V Mute ON Threshold
M ON
V Mute OFF Threshold
M OFF
I Quiescent Current @ Stand-by
qST-BY
A Mute Attenuation
MUTE
I Stand-by bias current
stbyBIAS
Mute bias current
I
muteBIAS
APPLICATION SUGGESTIONS
The recommended values of the external components are those shown on the application circuit of fig-
ure 1A. Different values can be used, the following table can help the designer.
SUGGESTION
COMPONENT
VALUE
R1 300K
R2 10K
P1 50K
C1 1000µF
C2 470nF
C3 470nF
C4 470µF
C5 100nF
C6 1000µF
C7 1µF
C8 1000µF
C9 100nF
Test Condition
f = 20Hz to 22KHz
Play, max volume
f = 20Hz to 22KHz
Play, max attenuation
f = 20Hz to 22KHz
Mute
f = 1kHz; max volume
C = 470µF; V
SVR
f = 1kHz; max attenuation
C = 470µF; V
SVR
Stand by on V
ST-BY
V
MUTE
Play or Mute
Mute
Play
PURPOSE
Volume control Larger volume regulation
circuit time
Mute time constant Larger mute on/off time
Volume control
circuit
Supply voltage
bypass
Input DC decoupling Lower low frequency cutoff
Input DC decoupling Lower low frequency cutoff
Ripple rejection Better SVR
Volume control time Larger volume regulation
costant time
Output DC Lower low frequency cutoff
decoupling
Mute time costant Larger mute on/off time
Output DC Lower low frequency cutoff
decoupling
Supply voltage
bypass
--26--
Min.
5
22.5
2
35
= 1V
RIP rms
55
=1V
RIP rms
3.5
3.5
50
= 5V
= 5V
-20
LARGER THAN
SUGGESTION
Smaller volume regulation
time
Smaller mute on/off time
Danger of oscillation
Higher low frequency cutoff
Higher low frequency cutoff
Worse SVR
Smaller volume regulation
time
Higher low frequency cutoff
Smaller mute on/off time
Higher low frequency cutoff
Danger of oscillation
Typ. Max. Unit
µV
500 800
µV
100 250
µV
60 150
8 V/µs
30 KΩ
Ω
30 100
KΩ
39 dB
65 dB
150 O C
O
160 C
V
1.5 V
V
1.5 V
0.6 1 mA
65 dB
µA
80
µA
µA
-5
µA
1 5
µA
0.2 2
SMALLER THAN
SUGGESTION