MM1100 MITSUMI | Alldatasheet
Document overview
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Technical content
Features
- Can be driven at low voltages (down to 2.4V) 2. Compression and expansion circuits enable suppression of unwanted radio waves 3. Consumption current 2.8mA typ. Package SOP-14B (MM1100XF)
Applications
- Cordless telephones 2. Various mobile communication devices SOP-14B 13 624 57 14 11 913 12 10 8 1 E.GIN 8 C.OUT 2 E.RIN 9 C.GIN 3 E.RECT 10 C.RIN 4 E.OUT 11 C.RECT 5 E.REF 12 C.IN 6 C.REF 13 C.NF
7 GND 14 VCC
MITSUMI Compander IC MM1100MITSUMI Block Diagram Absolute Maximum Ratings (Ta=25° C) Item Symbol Ratings Units Storage temperature TSTG -40~+125 ° C Operating temperature TOPR -10~+70 ° C Power supply voltage VCC max. -0.3~+8 V Allowable loss Pd 350 mW Operating voltage VOP +2.4~+7 V
MITSUMI Compander IC MM1100MITSUMI Electrical Characteristics (Except where noted otherwise, Ta=25° C, Vcc=3V, fIN=1kHz, VR=0mVrms) Item Symbol Measurement conditions Min. Typ. Max. Units Consumption current ICC No signal 1.8 2.8 3.8 mA Compressor reference voltage Vrefc 6PIN DC voltage 1.3 1.4 1.5 V Expander reference voltage Vrefc 5PIN DC voltage 1.3 1.4 1.5 V Input reference level Vinc V OC=300mVrms, VIN=0dB 100 120 145 mVrms Gain error difference * Gec1 V IN=-20dB -0.5 0 0.5 dB Gec2 V IN=-40dB -1.0 0 1.0 dB Distortion THDC V IN=0dB 0.3 1.0 % Output noise voltage Vnc No signal (CCITT) 2.5 5.0 mVrms Limit voltage Vlimc THD=10% 1.20 1.40 1.60 V P-P Crosstalk CTC EXPVIN=0dB -45 -35 dB Ripple rejection ratio RRC VR=100mVrms, fR=1kHz -20 -12 dB Input reference level Vine Voe=300mVrms, V IN=0dB 310 375 450 mVrms Gee1 V IN=-10dB -0.5 0 0.5 dB Gain error difference * Gee2 V IN=-20dB -1.0 0 1.0 dB Gee3 V IN=-30dB -1.5 0 1.5 dB Distortion THDe V IN=0dB 0.15 1.0 % Maximum output voltage Ve max. THD=10% 700 900 mVrms Output noise voltage Vne No signal (CCITT) 20 40 uVrms Crosstalk CTe COMPV IN=0dB -75 -60 dB Ripple rejection ratio RRe V R=100mVrms, fR=1kHz -60 -50 dB Compressor unit Expander unit *Gain error difference = (VOUT (dBv) + 10.46dB) -VIN (dB) G (dB) G : COMP=0.5, EXP=2
MITSUMI Compander IC MM1100 Pin no. Function Pin voltage (typ.) Internal equivalent circuit MITSUMI Pin Description 1 Input pin E 1.4V 9 Feedback signal input pin 1.4V 2 Rectifier input pin E 1.4V 10 Rectifier input pin C 1.4V 3 Rectifier pin E 0.7V 11 Rectifier pin C 0.7V 5 Reference voltage pin E 1.4V 6 Reference voltage pin C 1.4V 4 Output pin E 1.4V The rectifier is a full-wave rectifier. The response characteristics (attack time, release time) are determined by the time constant of the external capacitor C1 and the internal resistance (10kΩ )
MITSUMI Compander IC MM1100MITSUMI
7 GND pin 0V
8 Output pin C 1.4V 12 Input pin E 1.4V 13 AC signal cut pin 1.4V 14 VCC pin 3.0V The compressor amp must have a DC gain of unity and AC gain of infinity. In order to satisfy this requirement, a capacitor C2 is connected to pin 13 to remove AC components. The cutoff frequency is determined by the product with the internal resistance (10kΩ )