SSM2163S Analog Devices, SSM2163S Datasheet
SSM2163S
Available stocks
Related parts for SSM2163S
SSM2163S Summary of contents
Page 1
... Headroom 0.007% THD+N (Unity Gain kHz, 0 dBu) Power-Up/System Mute Feature Industry-Standard 3-Wire Serial Interface Data Out Terminal Permits Daisy Chaining of Multiple SSM2163s Single or Dual Supply Operation 28-Pin Plastic DIP and SOIC Package APPLICATIONS Multimedia System Mixing Audio Mixing Consoles ...
Page 2
SSM2163–SPECIFICATIONS ELECTRICAL SPECIFICATIONS Parameter AUDIO PERFORMANCE Noise Headroom Total Harmonic Distortion Plus Noise ANALOG INPUT Input Impedance VOLUME CONTROL Step Size Gain Error Gain Match Error Mute Attenuation ANALOG OUTPUT Output Impedance Output Current Minimum Resistive Load Maximum Capacitive Drive ...
Page 3
Timing Symbol Description t Input Clock Pulse Width CL t Input Clock Pulse Width CH t Data Setup Time DS t Data Hold Time DH t Positive CLK Edge to End of Write CW t Write to Clock Setup Time ...
Page 4
SSM2163 1 CLK 0 1 DATA WRITE CLK DATA WRITE 0 1 LOAD 0 1 SDO ...
Page 5
... C J Lead Temperature (Soldering, 60 sec +300 C THERMAL CHARACTERISTICS 2 Thermal Resistance 28-Pin Plastic DIP (SSM2163P C C/W JC 28-Pin SOIC (SSM2163S C C/W JC TRANSISTOR COUNT Number of Transistors . . . . . . . . . . . . . . . . . . 1711 MOSFETs ESD RATINGS 883 (Human Body) Model . . . . . . . . . . . . . . . . . . . . . . 1000 V NOTES 1 Stresses above those listed under “ ...
Page 6
... Function 1 DGND Digital Ground Digital Negative Supply DATA OUT Serial data output clocked on positive clock edge. Connect DATA OUT to DATA IN pin to daisy-chain multiple SSM2163s. Output levels are Digital Positive Supply Audio Signal Input 1. IN1 6 NC (Shield) Shield Pin. Should be tied to AGND to minimize crosstalk. ...
Page 7
LPF = 22kHz –60. 100k + –70.00 –80.00 20 100 1k FREQUENCY – Hz Figure 4. Frequency Response ...
Page 8
SSM2163 0dBu 0dB V LPF = 22kHz R = 100k 0 + 0.010 0.001 20 100 1k FREQUENCY – Hz Figure 8. THD+N vs. Frequency ...
Page 9
LOAD 100 Figure 14. Large Signal Transient Response 100 LOAD Figure 15. ...
Page 10
SSM2163 THEORY OF OPERATION The SSM2163 is an eight-input, two-output audio mixer and attenuator. The device provides eight analog inputs, each of which can be individually attenuated steps (see the SSM2163 ...
Page 11
0 AGND (NC) ACOM V– 0 DGND Figure 22a. Dual Supply stored in the attenuator control registers. ...
Page 12
SSM2163 MIXER MIXER SUMMING BUFFER AMP ATTENUATOR AMPLIFIER V MIXER IN SWITCH CHANNEL SELECT R1= Figure 23. Single-Supply Pseudo-Ground Reference (ACOM) Generator For single supply operation, the inputs can either be ac-coupled, as shown ...
Page 13
... SSM2163s can be paralleled to provide additional channels. A typical circuit is shown in Figure 26, which combines two SSM2163s to form a 16-input, 2-output mixer. An SSM2135 dual audio op amp sums the outputs of each of the SSM2163s. With this system, any of the 16 inputs can be mixed into either or both of the output channels. ...
Page 14
... WRITE input is low. However, the data will not be latched into the SSM2163’s internal registers until the rising edge of the LOAD input. In this manner, any number of SSM2163s can be loaded with data, while the amplitude and mixer changes will not occur until the separate LOAD pulse occurs. ...
Page 15
Listing 1. Software for the 80C51-SSM2163 Serial Port Interface ; This subroutine loads an SSM2163 mixer channel with a 6-bit ; attenuator value, and turns the Left or Right mixer switch ON or OFF. ; The attenuator value is stored ...
Page 16
SSM2163 number stored in LEVEL_VALUE is the attenuation value, expressed in –dB, so larger values will decrease volume. Also, the register must not be allowed to increment beyond 7FH because the MSB will be set and the SSM2163 will interpret ...