ISL5585FCRZ Intersil, ISL5585FCRZ Datasheet - Page 4

• Manufacturer Part Number: ISL5585FCRZ
• Description: SLIC 1-CH 53dB 45mA 3.3V/-18V/-24V/-28V 32-Pin QFN EP
• Manufacturer: Intersil

Specifications of ISL5585FCRZ

• Package: 32QFN EP
• Number Of Channels Per Chip: 1
• Polarity Reversal: Yes
• Longitudinal Balanced: 53(Min) dB
• Loop Current: 45 mA
• Minimum Operating Supply Voltage: 2.97|-16 V
• Typical Operating Supply Voltage: 3.3|-18|-24|-28 V
• Typical Supply Current: 9.3 mA

Pin Description
PLCC
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
---
28
QFN
10
11
12
13
14
15
17
18
19
20
21
22
23
24
25
26
27
6
7
9
SYMBOL
AGND
BSEL
RING
VCC
CDC
SCC
DET
ALM
POL
VRS
AUX
VTX
VFB
ILIM
RT
SH
E0
-IN
F0
TL
(Continued)
Mode control input.
Detector Output Selection Input. This TTL input controls the multiplexing of the SHD (E0 = 1) and GKD (E0 = 0)
comparator outputs to the DET output based upon the state at the F2-F0 pins (see the Device Operating Modes table
shown on page 2).
Detector Output - This TTL output provides on-hook/off-hook status of the loop based upon the selected operating
mode. The detected output will either be switch hook, ground key or ring trip (see the Device Operating Modes table
shown on page 2). DET will be latched low following a ring trip. Unlatching the DET pin is accomplished by changing
logic state.
Thermal Shutdown Alarm. This pin signals the internal die temperature has exceeded safe operating temperature
(approximately 175°C) and the device has been powered down automatically.
Analog ground reference. This pin should be externally connected to BGND.
Selects between high and low battery, with a logic “1” selecting the high battery and logic “0” the low battery.
Programming pin for the transient current limit feature, set by an external resistor to ground.
External capacitor on this pin sets the polarity reversal time.
Ringing Signal Input - Analog input for driving 2-wire interface while in Ring Mode.
Auxiliary input - Float if not used.
Transmit Output Voltage - Output of impedance matching amplifier, AC couples through a resistor to CODEC.
Feedback voltage for impedance matching. This voltage is scaled to accomplish impedance matching. The CFB
capacitor connects between this pin and the -IN pin. The CFB cap needs to be non-polarized for proper device
operation in the Reverse Active mode. Ceramic surface mount capacitors (1206 body style) are available from
Panasonic with a 6.3V voltage rating. These can be used for CFB since it is internally limited to approximately ±3V.
Analog Receive Voltage - 4-wire analog audio input voltage. connects to CODEC via receive gain setting resistor R
(see Figure 18). Resistor R
Positive voltage power supply,+3.3V
DC Biasing Filter Capacitor - Connects between this pin and V
polarized with a 6.3V voltage rating.
Ring trip filter network.
Loop Current Limit programming resistor.
Switch hook detection threshold programming resistor.
Substrate Common Connection - Connect this pin to VBH Supply. This pin is used to connect the substrate of the die
and the thermal heatsink plane of the QFN package.
RING power amplifier output.
4
IN
needs to be as close to the -IN pin as possible to minimize parasitic capacitance.
ISL5585
DESCRIPTION
CC
.The CDC capacitor may be either polarized or non
IN