SSM2160S-REEL Analog Devices Inc, SSM2160S-REEL Datasheet - Page 5

• Manufacturer Part Number: SSM2160S-REEL
• Description: IC BALANCE/VOL CTRL DGITL 24SOIC
• Manufacturer: Analog Devices Inc
• Type: Stereo Audio Volume Controlr

Specifications of SSM2160S-REEL

• Rohs Status: RoHS non-compliant
• Applications: Decoders, Receivers, Surround Systems
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Not Compliant

Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
REV. A
Mnemonic
V+
AGND
V
CH1 OUT
CH1 IN
CH3 OUT
CH3 IN
CH5 OUT
CH5 IN
WRITE
LD
V–
DGND
CLK
DATA
CH6 IN
CH6 OUT
CH4 IN
CH4 OUT
CH2 IN
CH2 OUT
MSTR SET
MSTR OUT
CH SET
REF
Function
Positive Power Supply. Refer to the Application Information section for details on the power supply.
Internal Ground Reference for the Audio Circuitry. When operating the SSM2160 from dual supplies,
AGND should be connected to ground. When operating from a single supply, AGND should be connected
to V
reference. Refer to the Application Information section for more information on the power supply.
V
divider between V+ and V–. In a dual-supply application with the AGND pin connected to ground,
V
to the Application Information section for more information on the power supply.
Audio Output from Channel 1
Audio Input to Channel 1
Audio Output from Channel 3
Audio Input to Channel 3
Audio Output from Channel 5
Audio Input to Channel 5
A logic low voltage enables the SSM2160 to receive information at the DATA input (Pin 15). A logic
high retains data at their previous settings (Figure 1). Serves as CHIP SELECT.
Loads the Information Retained by WRITE into the SSM2160 at logic low (Figure 1).
Negative Power Supply. Connect to ground in a single-supply application. Refer to the Application
Information section for details on the power supply.
Digital Ground Reference. This pin should always be connected to ground. All digital inputs, including
WRITE, LD, CLK, and DATA are TTL input compatible; drive currents are returned to DGND.
Clock Input. It is positive edge triggered (Figure 1).
Channel and master control information flows MSB first into the DATA pin. Refer to the Address/Data
Decoding Truth Table, Figure 7, for information on how to control the VCAs.
Audio Input to Channel 6
Audio Output from Channel 6
Audio Input to Channel 4
Audio Output from Channel 4
Audio Input to Channel 2
Audio Output from Channel 2
Connected to the inverting input of an I-V converting op amp. It is used to generate a master control
voltage from the master control DAC current output. A resistor connected from MSTR OUT to
MSTR SET reduces the step size of the master control. See the Master/Channel Step Sizes section for
more details. A 10 µF capacitor should be connected from MSTR OUT to MSTR SET to eliminate
the zipper noise in the master control.
Connected to the output of the I-V converting op amp. See MSTR SET description.
The step size of the channel control can be increased by connecting a resistor from CH SET to V+.
No connection to CH SET is required if the default value of 1 dB per step is desired. Minimum of 10 Ω
external resistor. See the Master/Channel Step Sizes section for details.
REF
REF
REF
is the internally generated ground reference for the audio circuitry obtained from a buffered
should be left floating. In a single-supply application, V
, the internally generated voltage reference. AGND may also be connected to an external
PIN FUNCTION DESCRIPTIONS
–5–
REF
should be connected to AGND. Refer
SSM2160