? 2001 in?eon technologies corp. ?optoelectronics division ?san jose, ca www.in?eon.com/opto ?1-888-in?eon (1-888-463-4636) 5?4 march 27 , 2001-14 DL207DAA line side ic for optical daa 2000 part of the daa2000 kit description the DL207DAA is part of the daa2000 circuit consisting of the DL207DAA line-side integrated circuit, a dm207daa modem-side integrated circuit and two il388daa linear optocouplers. when con?ured along with other components, the ?al circuit provides a full featured optical daa. the DL207DAA is packaged in a standard 24-pin tssop package. a com- plete daa circuit can be assembled directly onto a mother board using less than 4 square inches of board space, eliminating costly special or hand insert operations. the daa2000 is a full featured optical daa that takes into consideration the needs of today s portable and multimedia equipment. added features of the daa2000 such as line current sense, snooping and line v/f make the circuit ideal for enhanced modems which support speaker phones, answering machines, simultaneous voice and fax, caller id and voice/fax/data steering. maximum ratings supply voltage, v dd ? ss ...........................................................................10 v input voltage ............................................................. v ss ?.5 v to v dd +0.5 v package dissipation at 25?ambient ....................................................... 1.2 w derate linearly from 25?.................................................................0.03 w/? storage temperature ............................................................... ?0? to +85? operating temperature................................................................0? to +70? derate operating temperature linearly from 70? at 50 ma loop current to ....................................50? at 120 ma .007 (.19) .011 (.30) .011 (.28) .014 (.38) .0016 (.041) .021 (.55) .029 (.75) 12 typ. .031 (.80) .041 (1.05) .019 (.50) .029 (.75) 8 max. .005 (.15) .009 (.25) .002 (.06) .005 (.15) .169 (4.3) .177 (4.5) .248 (6.3) .255 (6.5) .303 (7.70) .311 (7.90) package dimensions in inches (mm) integrated circuit features v.32, v.34, and v.90 (56 kb/s) compatibility supports ring detect and wake on ring on-hook monitor provides for caller id and voice/fax/data steer functions on-hook monitor draws <1 ma over current and thermal limiting on-hook line voltage measurement line current sense low gain drift universal applications 100% low pro?e surface mount compatible to fcc part 68
? 2001 in?eon technologies corp. ?optoelectronics division ?san jose, ca DL207DAA www.in?eon.com/opto ?1-888-in?eon (1-888-463-4636) 5?5 march 27 , 2001-14 table 1. pin con?urations?l207daa (line side) pin symbol i/o function 1 hldr o hold resistor normally a 16.5 ? resistor is tied between this point and v ss . all of the loop current, less 4.0 ma passes through this resistor. this resistor value sets the 600 ? ac termination impedance, effects, and transhybrid balance. 2 ledct o led cathode the receive linear optocoupler (daa067 u3, pin 1) led cathode connection. this pin pro- vides sink drive current for the led. the printed circuit board layout should minimize capacitive coupling between this trace and the srvan and txan traces. 3 hldcap i hold capacitor line holding capacitor is tied between pin # 3 and pin # 23 (v ss ). a 68 nf capacitor in the holding circuit behaves like a 2.5 h inductor in the loop. 4 hkp o hook positive positive hook switch driver output. tied to the emitter of a pnp high voltage bipolar transistor. 5 hkn o hook negative negative hook switch driver output. tied to the base of a pnp high voltage bipolar transistor. 6 linpwr diagnostic pin do not connect. 7 hlfwv i halfwave connecting this pin to v dd selects halfwave ring detection (1 pulse/ring cycle). disconnecting this pin from v dd selects full wave ring detection (2 pulses/ring cycle). 8, 9 lr2, lr1 i line resistor a 10 m ? resistor is tied between each of these inputs and each side of the line. these inputs provide operating power and sense current for the ring detect circuit during on-hook (idle) mode. during off- hook operation, these inputs provide line voltage sensing for power limiting shutdown. 10 end a 150 k ? resistor is tied between this pin and cen. this is part of the first stage transmit bias control low pass filter when off-hook, and determines ring detect transimpedance gain for lr1 when idle. 11 cen another 150 k ? resistor is tied between this pin and c1a. this is part of the first stage transmit bias control low pass filter when off-hook and determines ring detect transimpedance gain for lr2 when idle. 12, 13 c1a, c1b a 15 nf capacitor (c1) is tied between these two pins. this sets the rc time constant for the first stage of the low pass filter of the transmit automatic bias control circuits. 14 biasen diagnostic pin do not connect. 15 c2 a 150 nf capacitor (c2) is tied between this point and line side v ss . this sets the integrator response for the second stage low pass filter of the transmit automatic bias control circuit. 16 txct i tx cathode the transmit photo diode return is connected to pin # 8 of the il388daa (u4). 17 txan i tx anode the transmit photo diode input is connected to pin # 7 of the il388daa (u4). this input is sen- sitive to noise relative to v ss and should be routed to minimize pickup from other signal sources. 18 onhkmcap i on hook monitor capacitor a series capacitor and resistor is tied from this pin to the bridge negative out- put. this connection is optional if caller id is not required. 19 vfcap i voltage to frequency converter capacitor a 33 nf to 68 nf capacitor is tied between this pin and v dd . a 20 m ? resistor is tied between this pin and the bridge negative output to implement the line voltage to fre- quency oscillator. this v/f function is optional and is only enabled while on hook. 20 hin diagnostic pin do not connect. 21 srvan i servo anode the receive servo photo diode is connected to pin # 3 of the il388daa (u3). this input is sensitive to noise relative to v ss and should be routed to minimize pickup from other signal sources. 22 srvct i servo cathode the receive servo photo diode current return is connected to pin # 4 of the il388daa (u3). this input is clamped to about 2.7 v. 23 v ss p line side return/negative voltage supply. 24 v dd p line side return/positive voltage supply.
? 2001 in?eon technologies corp. ?optoelectronics division ?san jose, ca DL207DAA www.in?eon.com/opto ?1-888-in?eon (1-888-463-4636) 5?6 march 27 , 2001-14 table 2. daa circuit operating characteristics, t a =25 c* note: * based on figure 2. some parameters can be affected by external components. figure 1. daa2000 functional block diagram parameter min. typ. max. unit ring detection threshold 15 v rms ringer equivalent load 0.65 ren transmit thd 70 db receive thd 70 db transmit in band noise 80 dbm receive in band noise 80 dbm transmit frequency response, 3 db 100 80,000 hz receive frequency response, 3 db 100 80,000 hz transmit signal level +3.0 dbm receive signal level +3.0 dbm transhybrid loss 10 20 db return loss 10 30 db off hook ac impedance (fig. 1) 600 ? on hook ac impedance (fig. 1) 150 k ? on hook dc resistance 10 m ? leakage to ground 100 m ? transmit gain 0.5 0 +0.5 db receive gain 7.0 6.0 5.0 db loop dc current 15 120 ma current limit threshold 130 160 ma isolation voltage, t & r to ground 2500 v supply voltage (modem side) 3.0 7.0 v supply current (modem side, active) 10 ma command input level (high) 2.7 v command input level (low) 0.7 v fuse transient protection ring detector hook switch hybrid network loop current dl207 current sensor il388daa il388daa bias supply dm207 1.25 v line status ring detector rx audio tx audio hook command caller id tip ring
? 2001 in?eon technologies corp. ?optoelectronics division ?san jose, ca DL207DAA www.in?eon.com/opto ?1-888-in?eon (1-888-463-4636) 5?7 march 27 , 2001-14 figure 2. daa2000 reference schematic (north american version) u4 il388 1 2 3 4 7 8 6 5 u3 il388 1 2 3 4 7 8 6 5 l2 hz 0805 b601 r q2 tn2540 sot89 r9 3.9 r4 56k c4 27nf q1 mmbt6520 sot23 c1 15nf c3 150nf c12 4.7nf r12 220k c8 15nf c9 470pf c2 150nf r11 20m c11 68nf c7 68nf c10 470pf c6 15nf r7 25.5k 1% r8 121k c13 68nf c16 100nf c17 4.7nf r1 16.5 1% jump for half wave ring detect jp1 r3 10m r2 10m u1 dl207 hldr 1 ledct 2 hldcap 3 hkp 4 hkn 5 linpwr 6 hlfwv 7 lr1 8 lr2 9 end 10 cen 11 c1a 12 vdd 24 vss 23 srvct 22 srvan 21 hin 20 onhkmc 18 txan 17 txct 16 vfcap 19 c2 15 biasen 14 c1b 13 r6 150k r5 150k c14 1nf 3kv j1 rj11 1 2 3 4 5 6 c15 1nf 3kv r14 10k r15 10k c19 100nf rv1 p3100sa l1 hz 0805 b 601 r d1 cbrhg-06 -+ f1 f1250t c18 100nf r13 27k c5 100nf c20 10 f r16 10m j2 con20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 u22 dm207 c1b 1 vref 2 c2 3 rxct 4 rxan 5 onhkml 6 onhkm 7 hin 8 srvan 9 srvct 10 txamp 11 vdd 12 c1a 24 lstat 23 rng 22 offhkl 21 offhk 20 rxout 19 acref 18 txbias 17 audin 16 audout 15 vss 14 ledct 13 c21 100nf r10 1k snpn snp t r txa1 t r rxa1 lstat ring ohn rxa2 txa2 oh acref vdd vdd isolation barrier isolation barrier notes: 1. all resistors are 0.1w, 5%, 0805 unless otherwise stated. 2. all capacitor values are 10% unless otherwise stated. ground
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