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1590B

Part # 1590B
Description BOX ALUM 4.41X2.38X1.22" UNPTD
Category MICROCIRCUITS
Availability Out of Stock
Qty 0
Qty Price
1 + $5.33630

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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

W91590 SERIES
- 16 -
Timing Waveforms, continued
ON HOOK
HKS
OFF HOOK
HFI
HFO
LOW
HIGH
T/P MUTE
HPM MUTE
CHIP ENBLE
H KEY
Figure 3(a).
Note: The H KEY cannot be enabled when chip is disabled.
OFF HOOK
HKS
HFI
H KEY
HFO
HIGH
T/P MUTE
HPM MUTE
CHIP ENBLE
Figure 3(b).
Note: The HFI and HFI inputs will toggle the HFO signal; as soon as either HFI or H KEY is activated the HFO signal will go
high and previous inputs will be ignored.
W91590 SERIES
Publication Release Date: July 1995
- 17 - Revision A3
Timing Waveforms, continued
ON HOOKHKS
HFI
H KEY
HFO
HIGH
T/P MUTE
HPM MUTE
CHIP ENBLE
Figure 3(c).
Note: Changing the state of the
HKS
signal from high to low will initialize the HFO and HPM MUTE signals.
LOW
HKS
R
KEY IN
T/P MUTE
TKID
DP
T
RB
T
PDP
IDP
T
T
IDP
LOW
HPM MUTE
KT
DTMF
OSC.
OSCILLATION
TFKP
Figure 4. Pulse Mode One-key Redialing Timing Diagram (when not first key)
W91590 SERIES
- 18 -
Timing Waveforms, continued
2
R/P
2
HKS
4
KEY IN
T/P MUTE
T
KID
MB
T
PDP
DP
TIDP
TIDP
BM
T
IDP
TPDP
T
P
LOW
HPM MUTE
KT
DTMF
OSC.
OSCILLATION
TFKP
Figure 5. Pause Function Timing Diagram
2
*/T
8
HKS
4
KEY IN
T/P MUTE
TKID
M
B
TPDP
DP
TIDP
TIDP
B
M
TP
TIDP
HPM MUTE
KT
DTMF
OSC.
OSCILLATION
T
FKP
Figure 6. Pulse-to-Tone Function Timing Diagram
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